Chapter 4 :"Welcome to the X-Zone — Idaten Battles Begin"
The tree line gave way to open plateau, and the four of them rode out into a world that was simultaneously familiar and completely wrong. The terrain had the grammar of mountain — trail, open ground, elevation changes, the particular quality of space that serious MTB riders recognize in their bones as their natural environment. But the proportions were off, the sky was the wrong shade of blue, and the energy in the air carried a subtle luminescence that none of them had encountered before — faint enough to dismiss as a trick of the light, persistent enough that dismissing it became increasingly difficult the longer they were in it.
Trails cut across the plateau in patterns that were clearly deliberate, clearly designed, clearly used by people who understood what they were doing on bikes. Structures at the far edge served practical purposes — storage, shelter, the functional architecture of a place built around a specific activity. And standing in the middle of the widest trail section, on bikes, watching them arrive with the particular attention of people who had established something here and were assessing whether the new arrivals understood that fact, were three riders.
The leader was roughly their age — lean, carrying the specific confidence of someone who had won enough to know what winning felt like, with the quality of a person whose first response to strangers in their territory was calculation rather than welcome. His two companions flanked him with the loose coordination of people who operated together regularly. Sho rode forward without hesitation, which was Sho's default response to any new situation involving other riders.
"Where are we?" he said. "And who are you?"
The leader looked at him with the flat assessment of someone sizing up an unknown quantity. "Where do you think you are?" he said.
"We don't know," Makoto said, with the precise directness she always brought to honest statements. "We came through a dark light transit. We have no information about this location."
"MTB riders?" the leader said.
"Yes," Sho said.
The leader's eyes moved across the four of them, pausing on their bikes with the instinctive inventory of an experienced competitor — Flame Kaiser, Neptune and then Imperial Qilin, where the pause became considerably longer. The platinum emblem and the quality of presence the bike carried produced in him the same arrested attention it produced in everyone who encountered it for the first time. He looked at it for a long moment, then at Kai, then back at the group generally.
"You came into my territory," he said, and his voice had the edge of someone establishing a position before the conversation developed further. "Uninvited. That's a serious mistake here." He exchanged a look with one of his companions — a quick, communicative glance of people who had done this before.
"We didn't choose to come here," Makoto said. "The dark light transit was involuntary."
"Hey Zamura," the companion on the left said, grinning with the open energy of someone who found the situation more entertaining than threatening. "Looks like these kids have no idea what's going on. They don't even know where they are."
So that was the leader's name. Zamura. Kai filed it.
The other companion — on the right, slightly younger — looked at their bikes with the evaluating expression of someone who had already moved past conversation to the practical question of acquisition. "Then why are we wasting time talking?" he said. "Take their emblems and let's go."
Raphael, Kai thought, keeping his expression attentive and calm. The word — emblems.
Already cross-referencing with the Akashic Record, she confirmed. The emblems are the energy signatures carried by bonded Idaten bikes — the concentrated expression of the bond between rider and machine. In this world they are both the currency of competition and the mechanism for returning home. Everything relevant is indexed. A brief pause. The situation is about to be clarified by a third party. Allow it to develop.
As if on cue, a figure rode out of the tree line on the eastern edge of the plateau.
The bike arrived first in their perception — fast and clean, ridden with the easy authority of someone completely at home in any terrain. Then the rider came into full view, and the four of them took in the appearance simultaneously: yellow and white helmet, black outfit with yellow shoulder-pads and elbow-pads and gloves, a large white cape that moved with the rider's motion in a way that was both impractical and somehow entirely correct. Black pants. Brown shoes. And across the lower half of the face, the clear line of a mask that made the rider's expression unreadable while leaving the eyes — sharp, observant, taking in the entire scene with rapid and comprehensive attention — fully visible.
The masked rider pulled up between the four newcomers and Zamura's group with the specific quality of someone inserting themselves into a situation they had decided to insert themselves into, and looked at Zamura with an expression that the mask concealed entirely but that the quality of the silence that followed communicated very clearly.
"Leave them alone," the masked rider said, and the voice was — clear, direct, carrying a quality that Kai's Communication skill at Level 100 registered as someone who was accustomed to being listened to when they spoke.
Zamura looked at the masked rider with the expression of someone reassessing their situation. "This isn't your territory," he said.
"They just arrived," the masked rider said, without acknowledging the territorial point. "They know nothing about this world yet. Taking advantage of that isn't competition — it's predatory." The eyes behind the mask moved briefly to take in all four newcomers, then returned to Zamura. "If you want to challenge them, at least give them the information they need to understand what's being proposed."
Zamura and the masked rider looked at each other for a long moment — the look of two people who had a history and had established, through that history, the specific positions they each occupied relative to each other. Then Zamura made the small gesture of someone standing down from a position while maintaining the appearance of choosing to do so rather than being moved.
The masked rider turned to the four newcomers.
"This is the X-Zone," they said. "It's completely different from where you came from. Nobody knows how it was created, or why it exists, or where it is. Before, everyone here lived in the same world as you — but the dark light brings every MTB rider to this place eventually."
"The dark light brought us here deliberately?" Makoto said.
"It brings every MTB rider here at some point," the masked rider said. "Whether the timing is deliberate or follows some other pattern — nobody knows. What matters is what happens once you're here." A pause, organizing the information into the most useful sequence. "When MTB riders arrive, the emblem on their mountain bike is put at stake. You compete in Idaten Battles — races with specific rules. The winner takes the loser's emblem. To return home, you must win ten Idaten Battles and collect ten emblems. Only then does the X-Zone open a path back."
"And if you can't win ten?" Kakeru asked, with the careful precision of someone building a complete picture.
"Then you stay," the masked rider said simply. "The X-Zone keeps you. Permanently."
The plateau was quiet while the four of them processed this. Kakeru was integrating it with the focused attention of someone building a technical understanding. Makoto was doing the same with her characteristic thoroughness, but Kai noticed something else in her expression — she was also looking at the masked rider with a quality of attention that was different from informational gathering. More personal. More searching. Her eyes were moving over the masked rider's posture, the way they held themselves, the particular quality of their movements, with the careful attentiveness of someone comparing what they were seeing to something internal.
Kai filed the observation and returned his attention to the situation. Sho had been listening with the focused patience of someone who had received an objective and was now determining the path to it. "Ten wins," he said. "And we go home."
"Ten wins," the masked rider confirmed.
Sho looked at Flame Kaiser. At the warm red-gold energy of the bike his father had built for him. At the bond that had been deepening all week at the X-Zone back home and had found something new in the race against Zamura. His jaw set. His eyes went bright and clear and completely steady.
"Then I'll win ten," he said.
It was not a boast. It was the statement of someone who had looked at the distance between where they were and where they needed to be, and had decided the distance was the road and the road was what they rode.
Zamura looked at him, and the calculation in his expression sharpened into something that was the first recognizable shape of competitive interest. "You're confident," he said.
"Challenge me," Sho said. "Find out if it's justified."
Zamura smiled — the smile of someone who had been offered exactly what they wanted and was going to take it. "Fine," he said. "Idaten Battle. Right now. My territory."
"Accepted," Sho said.
"Sho," Makoto said.
"Accepted," Sho said again, without looking away from Zamura, and his voice had the quality that meant the decision was made.
Zamura looked at his companions. "Bring out the drive launcher," he said.
His companion produced the device — and produced only one. Singular. For Zamura. Setting it up with the pointed efficiency of someone who had decided how this race was going to be run. The masked rider looked at this arrangement with an expression that the mask concealed and the quality of their subsequent silence communicated perfectly.
"One drive launcher," the masked rider said, and their voice had acquired a specific and deliberate flatness. "You're going to race a first-day arrival who has never done an Idaten Battle, who has never used a drive launcher, on an unfamiliar course — and you're going to do it with a drive launcher advantage." A pause. "That's what you're proposing."
Zamura didn't answer, which was its own kind of answer.
"A coward," the masked rider said, with the calm delivery of someone stating a taxonomic fact rather than offering an insult. "Someone who needs an unequal advantage to feel safe winning. That's what I'm looking at." Another pause, even more deliberate. "A spineless person who needs to stack every variable in their favor before they'll accept a challenge."
Zamura's expression changed. The comfortable calculation was gone, replaced by something that was equal parts indignation and the specific discomfort of someone being described accurately.
"Fine," he said, through something that was barely controlled. He looked at his companion. "Get another drive launcher."
The second drive launcher arrived.
The masked rider moved toward Makoto and Kakeru, and the instruction that followed was precise, clear, and technically thorough — the explanation of someone who understood the mechanism completely and had taught it before.
"Lever in and out — find the rhythm first before you build pressure," the masked rider said, demonstrating the motion with a natural ease that showed genuine familiarity. "The pump builds mechanical tension. When the start signal activates, hold your position and continue the rhythm. On green — release. The device takes you from standing to approximately one hundred kilometers per hour in the opening meters."
"Normally requires two operators for optimal efficiency," they continued. "But solo operation is possible. The key is the release timing — commit fully and don't second-guess the moment."
Kakeru tried the lever motion with the focused attention of a mechanic learning a new mechanism, his hands finding the rhythm after a few attempts. "The pressure-to-release ratio is elegant," he said. "Efficient engineering."
"Yes," the masked rider said, and something in the voice when they said it — the brief, genuine response to someone recognizing good design — carried a quality that made Makoto look at them again with that particular searching attention.
The masked rider moved through the instruction methodically, showing Sho the operation, correcting Kakeru's grip angle, demonstrating the lever rhythm from different positions. And Makoto watched. Not the instruction — she had understood it quickly and thoroughly — but the masked rider. The way they stood. The specific angle at which they held their shoulders when explaining something. The quality of patience in the instruction, unhurried and thorough, the particular teaching style of someone who genuinely wanted the person learning to actually understand rather than just follow steps.
It reminded her of someone. The thought arrived quietly and with enough weight that she had to make a deliberate effort to maintain her composed expression. She compared what she was seeing — the posture, the movement, the teaching quality, the voice — against a specific internal reference that was both deeply familiar and currently absent from her daily life.
Her older sister.
She did not say this aloud. She did not change her expression. She did not ask the masked rider directly, because asking directly without being certain would be the wrong approach, and because even if she was right, the masked rider had chosen to be masked and that choice deserved respect. She filed it. Kept it. And kept watching.
The course ran from the plateau's western edge along the widest trail, through elevated terrain with a significant drop in the middle, finishing at a rusted antenna rising from a wrecked aircraft fuselage half-buried in the hillside beyond the plateau's far edge.
Sho looked at it with the pre-race attention he always brought to new terrain — not memorizing it, not analyzing it, simply looking with the open receptiveness of a rider who trusted their body to integrate what their eyes provided.
"That antenna," the masked rider said, indicating the finish. "That's your finish line. The drop section in the middle is the course's key moment. I'd tell you more, but the rest needs to come from riding it."
"That's enough," Sho said, because it was.
The start line was two positions side by side. A signal device operated from the trail edge — red, yellow, green, universal in its logic.
Zamura took his position with the comfortable ease of someone on familiar ground. Sho took his with the drive launcher in hand, trying the lever rhythm once, finding it, trying it again with the developing naturalness of someone whose hands were good at understanding things they held.
They looked at each other across the starting gap.
"Ready?" Zamura said.
"Yeah," Sho said simply.
Red. Sho's hands found the pump rhythm — in, out, in, out, building the mechanical tension with the feel of something that was becoming familiar faster than it had any right to.
Yellow. Zamura's operation was practiced and fluid. Sho's was arriving at its form in real time.
Green. Both launchers released.
The acceleration was total and immediate. Flame Kaiser surged forward with the combined force of the mechanical launch and its own response to its rider's full commitment, and the speed that arrived in the first seconds was the speed of something that required the body to catch up to what was happening rather than the other way around.
Sho's body needed approximately one second.
Then he was riding — genuinely, completely, with the specific quality of someone who had found their pace and was in it. The expression on his face as the course bent and the observers caught a glimpse was the expression of someone who had just been reminded of what they loved most.
Zamura was ahead. His experienced launch had given him the cleaner start, and he carried it with the efficiency of someone who knew this course and what to do with a lead on it.
But the course was already teaching Sho through his wheels and hands, the way new terrain always taught him — through the body, through feel, through the integration of the ground's character into understanding faster than thought could process it.
The narrowing section arrived — and Zamura used it. He cut wide then swung back, crowding Sho's lane with the practiced efficiency of someone who had used this tactic before, using his bike's position to create a pressure situation that the rules of Idaten Battle did not prohibit.
"That's — " Kakeru started.
"Legal," the masked rider said, before he could finish. "The three rules of Idaten Battle: no switching riders mid-race, no interference from non-participants, no direct physical attacks between riders. Lane pressure that doesn't make contact isn't a direct attack." A pause. "It's a common tactic. And it's about to be answered."
On the course, Sho processed the narrowing space in the compressed time available, and produced the answer that was characteristically, completely his — the jackknife turn. Front brake locked, rear wheel brought around in the air through the midair pivot, direction changed with the total commitment of someone who had decided that commitment was the only viable option at this speed.
The physics of the situation said it shouldn't work.
Sho made it work.
Zamuro said something quiet and appreciative. The masked rider's eyes showed an expression that was difficult to read but that Kai recognized, through ten years of studying faces, as genuine admiration.
The course opened into the section before the drop, and Sho was behind — the turn had cost distance, which was the honest price — but riding with the quality of someone who had finished learning the course and had started using it.
And then the X-Zone's amplification effect, which Raphael had been tracking since they arrived, became visible to observers.
The energy between Sho and Flame Kaiser was doing something. Not dramatically, not with visual display, but in the quality of their motion — the way the bike responded to the rider and the rider responded to the bike, the integration going deeper with each passing minute in this world's amplified environment, the bond that had been building toward something all week at the X-Zone back home finding the conditions it had needed to take the final step.
The drop section arrived.
Zamura took his established line — fast, clean, the product of experience on this specific terrain.
Sho took the inner line. He had read it from the approach, the way the drop's geometry had presented itself as he came in and the answer had simply been there — not calculated, not decided upon, simply recognized as the correct response the way instinct recognizes things that analysis cannot reach in time. The inner line was shorter and the exit angle was better but the approach was wrong unless you read the terrain from the air, and Sho read it from the air, and Flame Kaiser went through it with the deep warm energy of a bond that had just opened a door.
Zamuro said quietly, from the observation point: "The inner line. First run."
The gap was gone. The long flat section to the finish opened with Sho and Zamura side by side, and the pace was genuine — both riders fully committed, neither yielding, the race finding the specific quality of a genuine test between two people who were truly competing.
Then Sho felt it. He would describe it later as something opening — a door that had been approaching for a long time swinging wide, revealing on the other side not a room but a quality of connection between him and Flame Kaiser that was more complete than it had ever been. Like they were one continuous thing rather than two things moving together.
The bunny hop came from that place. he natural rise in the flat section — that the course's regular riders navigated around because going over it at this pace was considered not viable — was simply there, and Sho was going over it, not because he had calculated the jump but because Flame Kaiser said it was the answer and his body agreed and the ten years of riding that his father had given him expressed itself in a single ten-meter arc that suspended rider and bike above the course in the precise attitude of something done exactly right.
Zamuro, with the characteristic precision of someone who tracked these things: "Ten meters. A professional manages seven on this section."
The masked rider said nothing. Their eyes showed the expression that was difficult to name but that Kai recognized as the specific kind of gladness that comes from watching something you had hoped to see.
Sho crossed the finish line ahead. Zamura arrived seconds later, and his expression when he dismounted had completed its update from calculation to something more genuine — the honest face of someone who had been beaten cleanly and was processing it with the dignity that genuine competitors bring to honest losses.
"X-Zone rules," he said, and reached into a compartment on his bike frame, producing a small disc carrying the specific energy signature that Raphael identified immediately. "You won. This is yours."
Sho took the first emblem and held it in his palm — first victory, first step of ten, the weight of it carrying the weight of everything it meant.
"I don't know how you did that inner line on a first run," Zamura said, with the directness of someone offering genuine assessment rather than consolation. "That's not something that happens."
"It looked right," Sho said simply.
Zamura looked at him for a moment. Then, with the specific expression of a competitive person who has found someone worth returning to: "I want a rematch. When you've done a few more battles and know this world better. A real race."
"Find me in X-City," Zamura said, with the easy confidence of someone who had already filed the challenge and would honor it when the time came.
The moment should have continued into the natural unwinding that follows a completed race. Instead, it was interrupted by a new arrival that changed the atmosphere of the plateau entirely.
"Nobody move."
The officer who rode onto the plateau was older than all of them, carrying the specific authority of institutional enforcement — the X-Zone's police, it turned out, which was one of the many things about this world that surprised them with its functional normalcy.
The interrogation that followed took place in the X-Zone police headquarters, in a room designed for the purpose, under the focused attention of the police captain — a broad-shouldered, serious-faced individual who had, it was immediately clear, dealt with a significant number of people who claimed to be innocent victims while sitting across from him in that specific room.
He looked at Makoto and Kakeru first, because they were the most immediately composed of the group and because composed people in interrogation rooms were either the most reliable witnesses or the most accomplished performers, and experience had taught him to find out which.
Makoto stated their case with the precise directness she brought to everything true — they had arrived involuntarily through the dark light transit, they had encountered Zamura's group who had challenged them, they had competed in an Idaten Battle that was by X-Zone rules a legal competition, and they were not members of any illegal racing organization.
Kakeru supported this with the practical specificity of someone whose instinct was to provide verifiable details — the specific sequence of events, the exact location on the plateau where each thing had happened, the precise words that had been exchanged.
The captain listened, and made notes, and looked from one to the other with the professional assessment of someone who had done this many times.
Then he looked at Sho.
Sho was asleep.
The silence that followed this discovery had a specific quality — the silence of four people simultaneously processing the same information with different emotional responses. The captain's face showed the escalating frustration of someone whose patience was being tested in a way he had not anticipated. Makoto's expression showed the compressed exasperation of someone who had expected better from a teammate in a serious situation and was not surprised but was still exasperated. Kakeru looked at Sho, then at the captain, then at Sho again, with the expression of someone doing rapid damage assessment.
Kai looked at his brother — genuinely, deeply asleep, head dropped forward at the angle of someone who had found a comfortable position through sheer commitment to unconsciousness — and thought: of course.
The captain's hand came down on the table with a sound that brought everyone in the room to full alertness.
Sho woke up. Looked around. Took in the interrogation room, the police captain, the situation, and the expressions of his companions, all in approximately two seconds.
"Oh!" he said, with the bright and energetic enthusiasm of someone who had woken up ready for whatever was happening. "I'm Sho Yamato! And these are my friends —" he pointed with the confident ease of someone making introductions at a social event rather than an interrogation, "— Makoto Shido, Kakeru Sakamaki, and my twin brother Kai Yamato! We're MTB riders and we arrived here through the dark light transit today, and we just won our first Idaten Battle, and —"
"Sho," Makoto said, with the specific flatness she reserved for situations that required immediate correction.
Sho, you are completely useless. Kai thought privately,
Makoto's expression across the table said the same thing with considerably more precision.
The captain looked at Sho for a long moment with the expression of a man whose patience had traveled a significant distance and arrived somewhere very close to its limit. Then he turned to Kai.
"You," he said. "Tell me exactly what happened. From the beginning."
Kai told him.
He told it the way he told important things — completely, in the correct sequence, with every relevant detail present and no irrelevant details included, in the calm and organized voice of someone who had nothing to hide and understood that the best way to demonstrate that was to simply be accurate. He described the dark light transit, the arrival on the plateau, Zamura's group, the masked rider's intervention, the instruction about the X-Zone's rules and the emblem system, the challenge and the drive launcher and the Idaten Battle and the result.
The captain listened without interrupting. When Kai finished, he was quiet for a moment — the quiet of someone integrating a thorough account against their prior assumptions and finding the account consistent with what honest accounts look like.
"Proof," he said finally. "I need proof that you won that battle legitimately and are not associates of the gang."
Kai looked at Sho.
Sho reached into his jacket and produced the emblem — the disc of energy that Zamura had handed over at the finish line, carrying the specific signature that the captain, when he saw it, clearly recognized immediately.
The captain took it, examined it, turned it over, and the expression on his face went through several stages before settling on something that was not quite satisfaction but was adjacent to belief.
"This is Zamura's emblem," he said.
"Yes," Kai said. "Won in an Idaten Battle."
The captain set it on the table. Looked at Sho. Looked at Kai. Looked at the emblem again. "If you were his associates," he said slowly, "you would not have taken his emblem. That's not how criminal organizations operate." He paused. "But I still have questions about how children who arrived today could have won that battle. Zamura is not an amateur."
He leaned forward.
"Tomorrow morning," he said. "You will have an Idaten Battle with me. On the Rocky Hills course. You win — I accept your story completely and you're free. You lose —" he looked at Sho specifically, "— then your story needs more examination."
Sho's expression, which had been tracking the conversation with the focused attention of someone who was now fully awake and fully present, transformed immediately into the bright, ready expression of someone who had just been offered exactly what they needed.
"Yes," he said.
"Sho —" Makoto started.
"Yes," Sho said again, and his voice had the quality that left no room for discussion.
The captain nodded once, with the formal efficiency of someone who had brought a meeting to its conclusion. "Tonight you'll remain in custody. Tomorrow morning, Rocky Hills."
He stood and left the room, and the four of them were taken to a holding area — a clean, functional space in the X-Zone police headquarters that was, as Makoto observed, a genuine jail cell with genuine locks — and Kakeru laid out his toolkit, and Makoto sat with her back against the wall and the particular composure of someone processing a great deal, and Sho — within approximately four minutes — fell asleep again, which produced in Kai a feeling that was equal parts fond exasperation and genuine admiration for a person who could achieve unconsciousness in any circumstances with that kind of commitment.
Kai sat in the quiet of the holding area and let Raphael's quiet presence organize the information the day had produced.
The masked rider went to the police headquarters, Raphael said. I tracked them through the compound's external sensors during the interrogation.
I know, Kai said. What happened?
They spoke to the officer outside the interrogation room. Told their version of events — which matched ours completely. The captain came out to hear it, compared it against what you had told him inside, and the consistency between the two accounts is part of why he moved toward the Idaten Battle challenge rather than immediate detention. A pause. The masked rider ensured you were safe before leaving.
Kai thought about this. About the masked rider — the yellow and white helmet, the white cape, the specific quality of their teaching when they had shown Makoto and Kakeru the drive launcher, the particular kind of presence they carried.
He thought about the expression on Makoto's face while she had been watching them.
He said nothing about either observation. Some things needed their own time.
Outside the holding area window — small, high, showing a rectangle of the X-Zone's wrong-blue evening sky — the world continued its business, and Hosuke the talking owl arrived on the windowsill at some point in the evening with the particular timing of someone who had located the people they were looking for and was satisfied to have done so.
"You found us," Kakeru said.
"You were not difficult to locate," Hosuke said, with the dignity of someone for whom being complimentary was less natural than being accurate. "The X-Zone police headquarters is the largest building in this section. It was the logical place to look."
"Can you stay near us?" Makoto asked.
"I had not planned to go anywhere else," Hosuke said. "I will be here in the morning."
Morning arrived with the specific quality of a day that had a purpose already established — the four of them brought from the holding area to the Rocky Hills course as the X-Zone's light shifted from its nighttime register to its daytime one, the temperature sharp and the air carrying the energy that this world's amplified Elem atmosphere produced in all its conditions.
The Rocky Hills course was exactly what the name described — terrain dominated by sand-heavy ground and the dangerous depressions that the captain had warned about. Sand pits. Deep, unstable, capable of swallowing a rider and bike entirely. The course ran through and around them with the specific design of something that was honest about its dangers while not making avoidance automatic — the pits were part of the test.
The captain's bike had been modified for this terrain — anti-slip tire spikes on the tires, adjusted gear ratios, the purpose-built preparation of someone who raced here regularly and had solved the course's specific problems with dedicated engineering.
"Be careful of the sand pits," the captain said, before the race. It was a genuine warning, delivered with the straightforward honesty of someone who was running a test rather than a trap. "If you go near them, they'll swallow you."
"Understood," Sho said, and the bright and ready expression was already somewhere between the start line and the finish.
Hosuke had arrived as promised, settling on Kakeru's handlebar bag with the composed authority of someone taking their preferred position. "I will observe," he said.
"Please do," Kakeru said.
The drive launchers initiated both riders, and the Rocky Hills race began.
The sand was dominant from the first meters — the loose, energy-absorbing ground that changed every calculation of speed and line and commitment, requiring a fundamentally different relationship with the terrain than packed trail produced. The captain's modified equipment gave him real advantages on this surface, the tire spikes gripping where Flame Kaiser's unmodified tires worked harder for the same result.
Sho spent the opening section learning the sand — through his body, through feel, through the integration of the ground's character into instinct faster than thought could process. He was behind. The captain's experience and equipment advantages were genuine, and genuine advantages produced genuine gaps.
The sand pit section arrived in the course's middle — the area where the dangerous depressions were thickest, the course narrowing between them, the margin for error reduced to something that required either very good judgment or very good instinct.
The captain was ahead and moving with the confident pace of someone on known terrain.
Sho was behind and learning the surface with every meter.
Then the course did something that courses sometimes do regardless of the rider's preparation or experience — it produced an unexpected variable.
The captain hit a section of particularly loose aggregate that his tire spikes had not fully accounted for, and the rear of his bike stepped out. His correction was fast — genuinely fast, the reaction of an experienced rider — but the correction brought him offline, and the offline brought him to the edge of one of the sand pit depressions, and the edge was not stable enough to hold the weight of a bike and rider at the speed he was carrying.
He went in.
Not completely — not the full swallowing that the course's worst cases produced — but deep enough that the sand was at his knees and rising, the unstable surface taking hold with the patient efficiency of something that had done this before, the bike buried to its bottom bracket and going deeper with each attempt to free it.
"Captain!" his companion shouted, from the course's edge.
Sho was too far ahead now to have seen it happen — the race's momentum had carried him past the section by the time the captain went in, and looking back told him what had happened but the distance between them was wrong for him to reach the pit in time to make a difference before the sand reached a critical level.
Kai, watching from the observation position with Imperial Qilin beside him, read the situation in the time it took to assess it — the captain's depth, the rate the sand was taking him, the distance Sho was from the pit, the distance he himself was.
He mounted Imperial Qilin before the calculation was complete, because the calculation's conclusion was already clear.
Raphael, he thought, moving immediately.
I see it, she said. The Vitality Resonance — the ground is alive in this world. Imperial Qilin's connection to it is the fastest path to understanding the sand pit's edge. Trust it.
He rode toward the pit.
Imperial Qilin's platinum foundation engaged with the terrain the way the upgrade had made it capable of engaging — not just reading the surface but connecting with it, the Vitality Resonance that the X-Zone's amplified environment intensified finding the sand pit's edges and the stable ground around it with a precision that no mechanical sensing system could have produced. The ground was cooperative in the way the specification had described — not magically, not impossibly, but in the way that a bonded Idaten in this world's amplified environment truly connected with the natural terrain it moved through.
Kai found the stable approach line that the Vitality Resonance showed him and took it at the speed that Imperial Qilin confirmed was correct, arriving at the pit's edge with the bike's adaptive geometry settling into the exact configuration for this specific ground at this specific moment.
The captain was chest-deep. Still fighting. The sand was patient.
Telekinesis, Raphael said. Available. Maximum level. You can use it.
He used it.
The skill at Level 100 — immediately and completely mastered through the MAXIMUM talent, never practiced but perfectly functional — extended from his focus and found the captain's bike first, because the bike was the anchor point, and stabilized it. Not pulling it free with force — that would have made the sand's grip worse — but holding it still, preventing the sinking, giving the captain the stable base he needed to push rather than fight a moving target.
"Push up," Kai said, calmly and directly. "The bike is held. Push with your legs now."
The captain looked at him — at the ten-year-old on the platinum-emblemed bike who had arrived at the pit's edge without visible effort and was now holding his bike in place with something that the captain clearly could not immediately explain — and then, because people in sand pits do not have the luxury of philosophical uncertainty, he pushed.
Three seconds of effort. The bike, held stable, gave him the leverage it couldn't provide when it was sinking. The captain came free, and Kai let the Telekinesis release, and Imperial Qilin's Vitality Resonance guided him back along the stable approach line to solid ground.
The captain stood on solid ground and looked at Kai.
Kai looked back with the calm expression of someone who had done what the situation required and was now waiting for whatever came next.
"How did you do that?" the captain said.
"My bike has a strong connection to natural terrain," Kai said, which was entirely accurate. "It showed me the stable path to the edge."
The captain looked at Imperial Qilin with the expression he had worn during the interrogation when processing information that complicated his existing model. Then he looked at the sand pit. Then back at Kai.
On the course, Sho had reached the finish antenna and was looking back, having processed the absence of the captain behind him and identified the situation at the sand pit from a distance. His expression showed the specific relief of someone who had been too far to help and had just confirmed that help had arrived from another direction.
The captain looked at the finish. At Sho. At Kai. At the sand pit where his bike remained buried.
"He won the race," the captain said.
"Yes," Kai said.
"And you —" the captain stopped, reorganizing what he was trying to say. "You came into this world yesterday. And you pulled me out of that pit."
"The situation required it," Kai said.
The captain was quiet for a moment — the specific quiet of someone integrating several things simultaneously, updating their model of the people they were dealing with in ways that required significant revision.
"I have no bike," he said finally. "The sand has it." He looked at Kai steadily. "You saved my life. I don't have the words for what I owe you for that." He paused. "What I have is the MTB truck — the transport vehicle we used in the pursuit yesterday — and the drive launcher, and my authorization to release the talking owl from custody." He paused again. "And an apology. For the interrogation. For the challenge. For treating you as suspects when you told the truth."
"You were doing your job," Kai said.
"I was," the captain said. "And you were telling the truth. Both things are true." He extended his hand with the formal directness of someone making an acknowledgment that they considered important. " I believe everything you told me."
Kai shook his hand.
Sho arrived at a run from the finish, having apparently decided that the distance between the finish antenna and the sand pit was something to be covered as quickly as possible once the race was settled, and his expression when he took in the full scene — the captain standing on solid ground, the sand pit behind him, Kai on Imperial Qilin at the stable edge — went through several stages before settling on the specific look he wore when his brother had done something significant that he was going to have thoughts about later.
"You're okay," Sho said to the captain, which was simultaneously observation and relief.
"Because of your brother," the captain said.
Sho looked at Kai.
Kai looked back with the mild, clear expression that he had maintained for ten years in situations that deserved more commentary than he was prepared to offer.
Hosuke arrived from wherever he had been observing, landing on a nearby rock with the composed authority of someone announcing their presence. "I would like to formally rejoin this group," he said. "The police custody arrangement was acceptable but not preferable."
"Captain," Makoto said, "you mentioned releasing the owl."
"Hosuke is free to go wherever he chooses," the captain said. He looked at the owl with the expression of someone who had still not entirely resolved their feelings about an owl that spoke like a person. "I never understood why he was in custody in the first place."
"Neither do I," Hosuke said, with great dignity.
Captain Ryusei gave them the MTB truck — a specialized transport vehicle, mountain-capable, built for the X-Zone's terrain — along with the drive launcher and the formal clearance that would prevent the X-Zone police in this section from treating them as unauthorized arrivals.
"Go to X-City," he said, looking at Sho specifically. "It's north of here — the center of the X-Zone, a city built around the Idaten Battle system. Every serious rider passes through it eventually. If you want to collect ten emblems and go home, that's where you'll find the competition you need." He paused. "You're an excellent rider. Both of you are." He included Kai in this with a look that carried more weight than a standard competitive compliment. "The X-Zone has things in it that will surprise you. Be careful about who you trust."
"Thank you, Captain," Sho said.
Ryusei looked at him for a moment longer. "Your father built a bike for you," he said, which was a statement rather than a question — he had heard enough, during the interrogation and after, to understand what Flame Kaiser represented. "Make him proud."
Sho didn't answer immediately. He put his hand on Flame Kaiser's handlebar, and the recognition that passed between them in that moment was private and complete and required no translation.
"I intend to," he said quietly.
They loaded up the MTB truck with their bikes secured and Hosuke established in the cab with the composed authority of someone who had decided this was his vehicle now by right of occupancy, and the four of them — plus one owl with amnesia and a growing list of restored memories — turned north toward X-City.
The X-Zone's landscape opened around them as they drove, revealing more of itself with each kilometer — the territories they passed through, the other riders visible on the trails in the middle distance, the texture of a world that had been running its own story for longer than any of them had been in it. Makoto sat quietly in the truck and thought about the masked rider's teaching quality and her older sister. Kakeru examined the drive launcher mechanism with the focused pleasure of a mechanic given an interesting problem with enough time to solve it properly. Hosuke provided occasional commentary on the landscape that was sometimes useful and sometimes obscure and always delivered with complete conviction.
Sho looked at the road ahead and held the first emblem in his palm and thought about ten.
Kai sat with Imperial Qilin and Raphael's quiet presence and the Darkness attribute's sensing of the dimension around them, and felt the watching presence that had been there since the first night — still attentive, still assessing, still at the distance of something that had decided to observe before it acted.
It updated its assessment when you pulled the captain out of the sand pit, Raphael said.
I know, Kai said. It saw me use Telekinesis.
It saw more than that, she said carefully. It saw you choose to use it. In a situation where you could have stayed uninvolved, where the race was already decided and the captain's situation was not your responsibility, you chose to act. A pause. Whatever is watching — it is interested in what kind of person you are. Not just what you can do.
Kai looked at the northern horizon where X-City waited — the center of the X-Zone, full of riders and stories and emblems and the specific competitive world that this dimension had built around its own rules.
Nine emblems.
And a world that was still revealing what it was.
"Hosuke," Sho said, from the front of the truck, "what's X-City like?"
Hosuke considered this with the focused attention of someone accessing memories that were present but not entirely organized. "Loud," he said. "Very loud. Full of people who are all trying to go home and are willing to race anyone to do it." A pause. "Also the food is quite good in the eastern district. I remember that specifically."
"Good to know," Kakeru said.
Sho looked at the road with the expression of someone who had already accepted where they were going and was simply waiting for the arrival so the next part could begin.
The road ran north.
The X-Zone continued its own story around them, enormous and amplified and full of things they had not yet encountered.
The truck drove on.
End of Chapter 4 — "Welcome to the X-Zone — Idaten Battles Begin"