Roland steadied the holographic mapper and forced himself to focus.
Panic would ruin precision and precision was the only thing keeping him alive now.
He moved toward the nearest wall and scanned the glowing symbols etched into its surface.
The device translated them instantly into readable glyphs. He checked each wall quickly, but his attention locked onto one in particular.
The w-wall.
That was the one that mattered.
A line of text shimmered into clarity,
[ +90° xy twist on crossing ]
"That means… when I pass through this wall, my orientation will rotate ninety degrees between left-right and forward-back directions. Not dangerous… if I expect it."
He glanced back at the map and made his decision. There was only one safe path. The shortest one that avoided hidden traps and met all the conditions.
He whispered the route to himself, committing it to memory.
0000 = 1000 is flip of x.
= 1100 is flip of y.
= 1110 is flip of z.
= 1111 is flip of w.
"Four crossings. Only one into w… that makes the total odd."
That mattered.
An odd w-crossing was required to unlock the final state. Even numbers would fail the mechanism completely. Now came the hardest part.
Unlinking the rings.
Roland returned to the center of the room. Cell 0000 and lifted the interlocked rings carefully in front of him. They felt solid, cold, stubbornly fixed together like iron chains.
In normal space, separating them without cutting would be impossible but this place wasn't normal at all.
He inhaled deeply and prepared himself.
He performed one smooth, continuous 180° rotation in the xw-plane.
That meant tilting the ring sideways. Not just left or right but slightly into the hidden w-direction. The direction he couldn't see but could now feel.
His hands moved slowly.
He rotated one ring forward, then gently twisted it sideways into space that did not visibly exist.
The sensation hit immediately.
A sudden, violent stomach-drop feeling like falling from a great height while standing completely still. His vision blurred at the edges as the fourth dimension briefly opened around the ring.
For a split second, the metal seemed to pass through itself, sliding along invisible space that had no right to exist.
He checked the rings again as his hands trembled again. They were no longer fully linked.
They formed into a position that should have been impossible. Yes, it was half-unlinked.
The probe remained left-handed, unchanged for now.
"This had to be first… two half-rotations… in different planes… that's the only way to separate them completely in fourth dimension."
Roland steadied his breathing and stepped toward the x-wall. His eyes were locked onto the shifting boundary ahead.
The glyphs shimmered faintly, responding to his presence like something aware of his decision. He pressed forward, forcing himself not to hesitate.
The moment he crossed the threshold, just a faint pressure slid across his skin like passing through a thin membrane of cold air.
He exhaled slowly. "Only w-crossings cause twists…" he muttered, reminding himself of the rule.
His wrist scanner flickered to life again.
[ Cell Confirmed: 1000 ]
[ Rings: Half-unlinked ]
[ Probe: Left-handed (L) ]
So far, everything matched the plan. He wasted no time.
Standing in cell 1000, Roland lifted the rings again, positioning them carefully in front of his chest. The instructions came inside his mind.
Second 180° rotation... this time in the yw-plane.
That meant tilting the ring forward, then sliding it again through that unseen w-direction but from a different angle than before.
He inhaled sharply and began the movement.
The instant the ring tilted into the hidden axis, the same violent sensation struck his body again.
A deep stomach-drop feeling, like gravity had vanished beneath him. His ears rang faintly as the space around his hands bent in ways his brain refused to fully understand.
The rings trembled in vibration, something happened... It broke...
Roland gasped as his fingers loosened slightly in shock. The two rings now floated apart in his hands, no longer linked together.
Impossible in three dimensions.
Perfectly possible here. The mapper updated instantly.
[ Rings unlocked. Good for all remaining barriers ]
Relief flickered across his face, brief but real.
One part done. But the next part carried equal risk.
He turned toward the y-wall and stepped through without hesitation.
[ Cell Confirmed: 1100 ]
Roland reached forward and took hold of the chiral probe, studying its twisted spiral form. It still carried the wrong orientation. Left-handed, incompatible with the exit mechanism.
Now came the critical step. Flip the handedness. He rotated the probe carefully, following the required motion.
One 180° rotation in the zw-plane.
This meant lifting the object slightly upward along the z-direction while sliding it simultaneously into the hidden w-direction.
The moment the rotation reached its midpoint, reality flickered strangely around his hand.
The probe seemed to pass through itself inverting.
He saw it. The shape had changed.
What once twisted left now twisted right.
The spiral orientation had visibly flipped, even from his limited 3D view.
Roland exhaled calmly.
[ Result: Probe Right-handed (R) ]
[ Rings: Still separated ]
"That worked…!?" he whispered, disbelief mixing with cautious relief.
Without wasting another second, he stepped through the z-wall, entering the next chamber.
[ Cell Confirmed: 1110 ]
Only one final crossing remained nd that last step would take him directly into the unknown.
Roland stood inside cell 1110.
The pressure in his skull pulsed like a distant drum, reminding him that one mistake here would erase everything he had just survived.
He raised his wrist and checked the scanner again.
The display glowed softly.
[ Rings = separated ]
That meant the two loops were no longer stuck together. In simple terms, they were now free, no longer blocking any locks.
[ Probe = Right-handed (R) ]
That meant the twisted object now faced the correct direction, like turning a left glove into a right glove. It matched what the exit system expected.
Below that, another line blinked,
[ Net rotations so far = +180° xw, +180° yw, +180° zw ]
Roland frowned slightly, translating the numbers in his own mind.
"That just means… I have rotated halfway between normal directions and the hidden direction… three times."
Each 180° meant a half-turn. Like turning a book upside down once simply, but absurdly powerful in this strange space.
w-crossings was 0, an even.
"Even means zero… or two… or four. But I still need an odd number. One… three… five…"
That meant only one step remained. The w-wall. The final boundary. Roland stepped toward it slowly.
The moment his hand passed through, everything shattered into sensation.
A violent wave of vertigo slammed into him, far stronger than anything before.
His stomach lurched violently, as if he had been thrown sideways into empty space. The world spun but through him, twisting in directions his body had no language to describe.
It was an... automatic 90° xy twist.
It simply occurred on its own.
Like a forced rotation between left-right and forward-back directions. For a brief second, fear flared inside him.
But then, the scanner updated.
[ Final rotations achieved: 180° xw, 180° yw, 0° zw ]
Roland blinked slowly. The last twist had canceled out the earlier zw rotation.
In simple terms, the extra spin he made earlier had been perfectly balanced by this automatic twist.
In simple words, turning left once, then turning right once, ending exactly where you needed to be.
The system accepted him instantly. A deep green light flooded the chamber. He was now inside cell 1111.
The final room.
The exit console ahead glowed softly, alive and waiting.
Beside him, the two rings floated freely in midair, no longer together. The probe hovered nearby. Its spiral clearly right-handed.
Another update appeared,
[ w-crossings = 1 (odd — perfect) ]
One crossing into the hidden direction. Exactly what the system demanded.
After everything...
The entire tesseract manifold began collapsing inward. Smoothly, like a folding structure closing into itself. The walls shrank, folded, vanished layer by layer until space itself seemed to compress around him.
He stumbled forward suddenly, crashing onto solid wooden flooring back in normal world.
He lifted his head weakly.
A narrow wooden hallway stretched ahead of him, lit by dim yellow lamps. Just straight walls and ordinary space.
His head throbbed violently. His vision were swimming as exhaustion crashed into him all at once.
The required final states were 180° xw, 180° yw and 0° zw. However, Roland performed 180° zw on the probe in cell 1100.
Then, when crossing the w-wall, the 90° xy twist "cancels out" the earlier zw rotation, resulting in net 0° zw.
This has no mathematical basis. He knew it, but he also knew, mathematics doesn't apply on these dimensions fully. All these researches are still 'concepts' after all. So he had to create a fantasy of his own, to crack the code.
Only then did the realization hit him fully.
He had never entered the ACTUAL dangerous rooms, the ones marked 0101, 1010, or the deadly zw twist-trap barrier.
He hadn't fought them.
He had avoided them entirely. Because every barrier only checked one thing, whether the rings and probe were in the correct state.
And by the time he reached the final door... everything had already been perfect.