Even as the officers around Wendt exchanged glances of hope, the world above us continued to collapse.
The fighting hadn't paused for my report. The sounds that filtered down from the trench network were, if anything, louder than they'd been five minutes ago.
We were still in hell.
A soldier came around the corner at a dead run. His uniform was shredded along the left side, the fabric hanging in strips that exposed skin beneath, mottled red. He skidded to a halt in front of the nearest officer, chest heaving, words already tumbling out.
"Sir." The word cracked. He swallowed. Tried again. "Sir, the eastern lateral. The Regular Army bunker. The elves have breached the entrance. They're inside the complex. Fighting in the connecting corridors. Casualties are—"
He stopped.
"Casualties are escalating, sir. Fast."
The Regular Army maintained its own bunker system parallel to the Iron Cross installation. A separate network of underground chambers and transit corridors, connected to the main trench line by a series of lateral passages.
If the elves took that bunker, they gained access to a major transit corridor on the eastern part of the line.
Wendt absorbed the report without a visible reaction.
"How many inside?" he asked.
"Estimates are thirty to forty elves in the connecting corridors, sir. More trying to push through the eastern trench."
Wendt turned to his officers.
"Our goal is clear," he said. "We hold this installation. We hold it until the reinforcements from Grenzheim reach us. Every minute we keep the elves contained in the trench network is a minute they're not reaching open ground."
He pointed upward.
"The defensive grid is active again. Any elf that tries to cross the surface above this bunker is walking into the same minefield that held them back for years. Some will make it through. But only small numbers."
He lowered his hand.
"The threat is underground. In the corridors. In the trenches. That's where they'll concentrate their effort. That's where we hold."
His eyes moved from face to face.
"I'm taking First and Third squads to reinforce the Regular Army bunker."
He turned to the remaining officers. Two lieutenants and a sergeant whose face I didn't recognize.
"The forward trenches are yours. Hold what we have. Don't advance. Don't try to push them back. Conserve your people. Buy time."
He didn't wait for acknowledgment.
Wendt moved down the corridor toward the eastern passage. His officers fell in around him. A dozen soldiers peeled from the staging chamber and followed.
The corridor settled into the particular silence that follows a commander's departure.
The two lieutenants exchanged a look.
One of them, a woman with close-cropped hair and a burn scar that crawled from her jaw to her left ear, took a breath that was deeper than it needed to be.
"You heard the commander," she said. "Hold what we have."
Time stretched.
In the staging chamber, without clocks or an external reference point, the minutes lost their edges and bled into each other. An hour might have passed. Or two. Or twenty minutes that simply felt like hours.
The wounded kept coming.
They arrived in pairs, in groups, sometimes alone, dragging themselves down the transit corridors and into the staging chamber. Medics moved between them. Supplies dwindled. The medical adhesive ran out first. Then the bandages. Then the water.
Soldiers who could still walk were sent back up. Fresh bodies to replace the ones that had been carried down.
The rotation was relentless. A man would descend with blood on his face and a wound in his shoulder, sit for ten minutes while a medic worked, then stand and climb back into the trench network because there was no one else to send.
The ones who came down talked, when they could.
Fragments.
"Holding the western junction but they keep pushing through the secondary..."
"Lost Brenner. Took a lightning bolt through the chest. Gone before he..."
"—three of them in the lateral. Three. Took six of us to bring one down and the other two..."
"It's the magic. We can't match it. Every time we get close enough to swing, they cast something and we're..."
I sat against the wall near the northern corridor and listened.
My body was rested. While these men and women had been fighting since dawn, since the first elven boots hit the trench floor.
Another group came down. Four soldiers supporting a fifth between them. The fifth man's legs dragged, leaving twin trails in the dirt. His head lolled. The soldiers lowered him beside the wall and a medic was there in seconds, fingers pressing against a throat, searching for the pulse that would determine whether the next five minutes would be treatment or triage.
The medic's hands came away.
She pulled a cloth over his face.
The four soldiers who'd carried him stood there for a moment.
Then they turned and climbed back up.
I watched them go.
My fingers tightened around the sword's grip.
I stood.
My boots found the packed earth of the northern corridor. The entrance to the forward trench network gaped before me.
"Kaspar."
Thom's voice. Behind me.
He'd pushed himself up from the supply crate where he'd been sitting. His remaining hand braced against the crate's edge, steadying himself. The stump of his right arm was pressed against his side.
"Don't."
I stopped.
"You've done enough," Thom said. His face was pale beneath the soot. "More than enough. The reinforcements are coming."
"They're not here yet."
"They will be." He stepped toward me. His balance wavered. He caught himself. "You don't need to go up there. Our people are holding."
"Barely."
"Barely is enough. Barely is what we do." His jaw clenched. "Listen to me. Those elves up there, they're not like the ones you fought in Grenzheim."
His remaining hand found my arm. The grip was weaker than before.
"These are vanguard troops. The ones the elves send first because they don't need the main army behind them. They don't cast and then fight. They cast whilethey fight. A blade in one hand and a spell forming in the other, simultaneously, without pause."
His eyes held mine.
"One of them can hold three of our soldiers. Three trained Iron Cross fighters using Mana Blood. These bastards treat it like a warm-up exercise."
I held his gaze. "I'm rested, Thom. I'm the only person in this bunker who hasn't been fighting since dawn. Every soldier up there has been at it for hours. Their Mana Blood is depleting. Their arms are heavy. Their reaction time is slowing, and the elves don't slow down."
I turned my arm in his grip. Not pulling free. Just letting him feel the muscle beneath the sleeve that wasn't shaking with fatigue.
"If I don't go up there, they're going to breach these corridors. And when they breach, they reach this chamber, and every wounded soldier lying on that floor becomes a target."
I paused.
"Or worse. An elf decides he's had enough of fighting in tunnels. Finds an exit. Reaches open ground. Makes it past the mines and the batteries because he's fast enough and light enough and good enough. Then he's behind our lines, in human territory, with no one between him and whatever he decides to destroy."
Thom's grip loosened.
"Be careful," he said.
Although Thom was an officer, he truly cared about his recruits.
He was older, and I knew he had come to the front a long time ago. He had lost more people than an ordinary soldier could normally endure.
"I will."
I turned and walked into the corridor.
The sound hit first.
The deeper I climbed into the trench network, the louder the fighting became.
Steel. Magic. Screams. The wet thud of bodies hitting earth. The crack of bone breaking under impact.
The first pocket of combat appeared thirty meters ahead.
The corridor widened into a junction where three passages converged. Two Iron Cross soldiers held the junction's mouth, their backs pressed against opposite walls, their swords out. Between them, blocking the passage that led south toward the no-man's-land, a single elf fought.
He was tall. They were all tall. But this one moved with a particular ease that made the corridor seem built for him. His blade, a single curved weapon, wove between the soldiers' guards with a patience that was almost leisurely.
His free hand hung at his side.
Yet, it wasn't idle.
Light gathered at his fingertips. A slow, steady accumulation that built between his index and middle fingers like a drop of water forming at the tip of a stalactite. The light was pale green. It pulsed in rhythm with his strikes, growing brighter each time his blade connected with one of the soldiers' guards.
He was charging a spell while fighting. The soldier on the left overextended. A thrust that went six inches too far, driven by desperation and fatigue. The elf didn't parry. He sidestepped. The soldier's blade passed through empty air. The elf's curved sword came down on the extended arm and the soldier screamed as the edge bit through the bracer and into the flesh below.
The second soldier lunged.
The elf caught the lunge on his blade's crossguard. Twisted. The soldier's sword was wrenched sideways, the binding breaking his grip. The weapon clattered against the wall.
The pale green light at the elf's fingertips reached critical mass.
He released it.
Not at the soldiers. At the corridor behind them. The bolt screamed down the passage and detonated against the far wall in an eruption of force that blew chips of stone in every direction and filled the space with choking dust.
A clearing move. Designed to cut off reinforcement. To isolate the two soldiers.
I was already running.
The dust cloud from the detonation provided three seconds of obscured visibility. I crossed the junction at a sprint, boots hammering the earth, sword in both hands.
The elf heard me before he saw me. His head turned. The curved blade came around in a sweeping arc.
I ducked beneath it.
The steel passed over my scalp. I felt the wind of its passage ruffle my hair. My body was already coiling for the counter.
I drove the bastard sword upward in a rising cut that targeted the gap between his armored torso and his sword arm.
The elf twisted. The cut that should have opened his side instead scraped across the outer edge of his chest plate, throwing sparks. He gave ground. Half a step. The first retreat I'd ever seen an elf make in close quarters.
His eyes found mine.
They were green, the same shade as the spell he'd cast.
His free hand came up.
Light gathered.
I didn't wait for it to form.
I pressed. Thrust, cut, half-step, thrust. The bastard sword's reach exceeded his curved blade by several inches, and I used every one of them, keeping the point in his face, forcing him to parry rather than cast. He parried my thrust. Redirected the cut. But the half-step brought me inside his guard, closer than his curved blade wanted to operate, and my pommel drove into the side of his head with a crack that snapped his neck sideways.
He staggered.
The injured soldier, the one whose arm was bleeding, hadn't quit. He'd retrieved his sword with his offhand. From behind the elf, he drove the point into the gap between the elf's shoulder blades, beneath the armor's collar.
The blade sank six inches.
The elf's body arched. His mouth opened. A sound came out that wasn't quite a scream. The sound of something genuinely surprised.
I finished it.
The bastard sword came around in a horizontal arc that caught the elf's exposed throat. The steel bit deep. Blood sprayed in a hot arc that painted the corridor wall and my face and the soldier beside me.
The elf dropped.
The two soldiers sagged. The one with the arm wound slid down the wall until he was sitting, his injured arm cradled against his chest. The other bent double, hands on knees, breathing in great heaving gasps.
"Thanks," the standing one managed between breaths.
"Push back to the junction," I said. "Regroup with whoever's behind us."
I didn't wait for a response. I was already moving, pressing south through the corridor the elf had been guarding.
The plan had been elegant in my mind.
Find the pockets where we held numerical advantage. Tip the balance. Finish the fight. Move to the next pocket. Repeat. Build momentum. Gradually kill the elves one by one until the corridors were clear.
In my mind, it looked like efficiency. Surgical intervention.
Reality disagreed.
The second pocket was worse. Three elves held a widened section of trench against five Iron Cross soldiers. We had numbers. We had Mana Blood.
Still, it wasn't enough.
The three elves fought as a unit. Not like humans fought as a unit, with coordinated calls and rehearsed formations. The elves moved the way a single organism moves. When one retreated, another advanced to fill the space. When one cast, the other two shifted to cover the momentary gap. Their blades and their magic operated on a frequency that human soldiers simply couldn't match.
I entered the fight from the flank.
My blade found an opening on the nearest elf, a gap created when he turned to parry. The bastard sword's point drove into his hip joint, sliding between the articulated plates of his armor and into the tissue beneath.
He screamed.
The sound was briefly satisfying.
Then his companions reacted.
The nearest elf spun toward me with a speed that made my stomach drop. His blade came around in a horizontal cut that would have bisected me at the waist if I hadn't already been falling backward, throwing myself out of the arc with a desperate stumble that cost me my footing and put me on my back in the dirt.
The elf advanced. His blade rose for the killing stroke.
An Iron Cross soldier hit him from the side. A full-body tackle that drove them both into the trench wall. The impact was brutal. The soldier's momentum crushed the elf against the stone. His hands found the elf's sword arm and pinned it.
The elf's free hand pressed flat against the soldier's chest. The detonation was point-blank. A pulse of force that lifted the soldier off the elf and hurled him backward into two of his comrades. They went down in a tangled heap of limbs and armor.
The elf straightened. His armor was dented where the tackle had driven him into the wall. A trickle of golden blood ran from beneath his helmet's rim. But he was standing, and his blade was up, and the spell at his fingertips was already reforming.
I was on my feet by then. My side ached where I'd hit the ground. My sword was up. The mana burned in my arms and my chest, the mint-cool fire that Mana Breath sustained with every exhale.
We engaged.
The elf was faster. His strikes came in combinations that flowed from one to the next without the momentary pause that human swordsmanship demanded between movements. His blade was a river of curved steel that found angles I didn't know existed, probed defenses I'd thought were solid, threatened targets I'd forgotten were exposed.
I parried. Deflected. Gave ground inch by inch.
Every time I tried to counter, his free hand flashed. A pulse of air that disrupted my footing, or a flicker of heat that forced me to flinch, or a crackle of static that made the nerves in my sword arm misfire.
Tiny micro-castings, precise applications of magic woven into the gaps between his blade work, each one too small to be lethal but perfectly calibrated to erode my ability to fight back.
The injured elf, the one I'd stabbed in the hip, had pulled himself against the wall. He was still dangerous. His blade was up. His free hand glowed with the steady buildup of something that would be much larger than a micro-casting.
The remaining soldiers saw it.
Two of them broke from the main engagement and rushed the wounded elf. Their blades came down in coordinated strikes that he parried from his seated position with a skill that was breathtaking even through the blood loss.
Minutes bled.
Each exchange cost something. A nick on my forearm where his blade had slipped past my bracer. A bruise on my ribs where a mana pulse had connected. A shallow cut above my eye that sent blood running into my left field of vision, turning the world red on one side.
The soldiers around me were accumulating their own tolls. Cuts. Burns. But mostly the trembling fatigue that came from fighting at Mana Blood's limit for hours without rest.
The elves were accumulating damage too. Just slower. The elf I'd stabbed in the hip was weakening. The blood loss was telling. His parries grew slower. His spellwork dimmed.
One of the soldiers fighting him found the moment. A thrust that slipped past the curved blade and into the elf's chest. The elf's body went rigid. A wet, gargling sound escaped his lips. He slid sideways down the wall and didn't move again.
The other two elves felt the loss. Something shifted in their coordination. The seamless unity of their movements developed a crack, a half-second hesitation where there had been none before.
I pressed the crack.
Everything I had. Every ounce of mana in my arms and shoulders and core. The mint-burn blazed so hot my lungs felt like they were filled with white fire. The blue vapor that streamed from my lips with each breath was dense enough to leave trails in the air.
My blade came around in a combination that I hadn't practiced. It simply happened. The bastard sword moved through a pattern that my body assembled from a thousand fragments of training and combat.
Three strikes.
The first caught his blade and drove it wide. The second found his forearm above the gauntlet, and the steel bit through to bone. The third, a thrust driven by the rotation of my hips and the weight of my entire body, entered beneath his chin and drove upward into his skull.
His eyes went wide. His body dropped.
The last elf in the pocket saw his companion fall. His blade came up. His hand blazed with gathered light. For a single instant, he assessed the corridor: seven human soldiers and one of him.
He snarled something in a language I didn't understand. Then the light at his hand erupted.
Not at us.
At the ceiling.
The explosion brought down a section of reinforced stone that blocked the corridor between us in a cascade of rubble and dust. By the time we'd scrambled clear, the elf was gone. Retreated south through whatever passage the collapse hadn't blocked.
The soldiers around me slumped against the walls. Some sat. Some collapsed entirely. The adrenaline crash hit them all at once, a wave of exhaustion that turned legs to water and hands to trembling, useless things.
I leaned against the trench wall and breathed.
My chest heaved. The mana-burn in my lungs pulsed with each inhalation. My arms ached from the shoulder to the wrist. The cut above my eye had mostly clotted, leaving a crust of dried blood that pulled at my skin every time I blinked.
One elf dead by my hand. Two assists. Hours of fighting.
It wasn't enough.
The corridors became my world.
Every pocket was different. Two soldiers pinning an elf against a junction wall while a third tried to find an angle for a killing blow. Four elves methodically dismantling a barricade that six Iron Cross fighters had erected from supply crates and broken timber. A lone elf holding a corridor intersection by casting walls of electricity that arced from wall to wall, sealing the passage in a grid of blue-white death that no one could cross.
I helped where I could. Tipped balances. Covered retreats. Drew attention away from wounded soldiers long enough for them to be dragged to safety.
The elves were relentless.
Every one of them fought with that same terrifying integration of blade and magic. They switched between offensive and defensive magic the way a human might switch between a forehand and a backhand.
And the magic they threw could clear entire corridors.
A single elf, pressed hard by three soldiers converging on his position, simply raised both hands and released a cone of flame that filled the passage from wall to wall and floor to ceiling. The fire roared down the corridor like a living thing. The soldiers threw themselves flat, pressing into the smallest recesses they could find. One wasn't fast enough. His scream was brief and followed by silence.
Another elf, cornered in a dead-end passage, discharged an electrical cascade that turned the air itself into a weapon. The bolt leapt from the elf's outstretched fingers to the nearest metal surface, from there to the next, bouncing between the iron reinforcement bands on the walls and the steel in the soldiers' armor with a crackling fury that dropped two men in their tracks and sent a third staggering backward.
Against a regiment without mages, this was catastrophic.
The soldiers who held these corridors had Mana Blood, steel, courage and nothing else. Mana Blood was finite for these soldiers. Their cores, one or two at most, couldn't sustain the technique indefinitely under combat conditions. As the hours dragged on, I could see it happening. The soldiers who had been quick moments before were slower now. The ones who had absorbed attacks without flinching now winced. The enhanced strength and speed that Mana Blood provided was draining from their muscles.
My own body was beginning to rebel.
Not my mana. The nine cores continued their relentless production, feeding Mana Breath with a supply that showed no sign of diminishing.
But the muscles that channeled that mana were human muscles. They fatigued. They accumulated lactic acid. They developed the micro-tears and the inflammation that came from hours of swinging a sword.
Mana was almost infinite.
My body was not.
Finally, after what felt like an eternity, the word came.
It traveled through the corridor network the way Wendt's earlier call had traveled.
"RETREAT! FALL BACK TO MAIN CORRIDORS! REINFORCEMENTS ARRIVING! RETREAT!"
The relief that flooded through me was so intense it nearly buckled my knees.
But retreat in a tunnel fight was not the same as retreat on open ground.
You couldn't simply turn your back and run. The corridor behind you was the corridor the enemy wanted. Every meter you yielded became a meter they occupied. Every junction you abandoned became a junction they controlled.
The withdrawal had to be deliberate. Corridor by corridor, junction by junction, holding each position long enough for the soldiers behind you to establish the next defensive point before you fell back to join them.
The elves could feel it, they read it instantly.
The pressure intensified. Where they had been methodical before, content to hold ground and probe defenses, they now pushed.
More magic. More fire. More lightning. The corridors lit up with the actinic flash of offensive spellwork as the elves threw everything they had at the retreating humans.
"HOLD THE JUNCTION! GIVE THEM THIRTY SECONDS!"
The shout came from an officer I couldn't see. Two soldiers flanked me. Both were spent. An elf rounded the corridor ahead.
His blade led the way. His free hand crackled with something that lit the passage in stuttering white flashes.
We held.
The three of us formed a wall across the passage. My sword in the center, theirs on either side. The elf hit us and we absorbed the impact and pushed back.
The exchange lasted ten seconds.
"CLEAR! MOVE!"
We turned.
Ran.
The transit corridor was twenty meters behind us. Fifteen. Ten.
I was three steps from the junction when it happened.
Something had changed in the air behind me. The sensation that my months of Mana Perception training had taught me to recognize as magical buildup.
I began to turn.
The spell hit me in the back.
A bolt of compressed force that struck between my shoulder blades. My feet left the ground. The world spun. I hit the far wall of the corridor with an impact that drove every bit of air from my lungs.
I bounced off the wall. Hit the floor.
The second spell came before I could move.
Lightning. A branching arc that found the metal in my armor and turned my body into a conduit.
The third hit was fire. A jet of concentrated flame that roared down the corridor and washed over me.
I opened my mouth to scream.
No sound came out. The last thing I felt was someone's hands on my arms. Dragging me. The rough scrape of stone against my back.
Then silence.
No message followed. Whatever counted as "death" on my grimoire, I hadn't crossed it, not yet.
The first thing I became aware of was sound.
Voices. Low, rapid, speaking in a language that wasn't human.
Elvish.
The second thing was my skin.
My body was wet. Soaked. Drenching my clothes, pooling beneath my feet. My eyes struggled to stay open. One of them felt swollen, and I could barely make out what was happening around me. But I could still see, if only a little.
Elves.
Several of them were standing in front of me, talking among themselves.
One of them pointed at me.
"This one."