Chapter 15: The Geometry of Cost
Yukeli remained standing for a few moments without moving.
His body still trembled slightly, not out of fear, but from pure, visceral exhaustion. The muscles in his legs were rigid, as if every fiber had been twisted to its limit and then left to harden in the wrong place. His breathing was no longer irregular, but it wasn't normal either; each breath had to be a conscious act, a command sent from the brain to lungs that seemed reluctant to expand against his aching ribs.
He didn't like it.
He didn't like depending on deliberate effort for something that should be automatic. Biology should serve the purpose of existence, not become an obstacle to it. Weakness was a dangerous variable in any equation of survival, and dangerous variables needed to be understood and, if possible, eliminated.
His eyes moved slowly across the surrounding darkness. The faint infrared perception, granted by his "Awakened" state, traced the world in shades of icy blue and deep gray.
The cave was vast but chaotic in its geography. The floor was not level; it sloped at gentle, treacherous angles, with small natural elevations and depressions formed over a span of time impossible to estimate. The walls were composed of the same dark mineral he had seen before, but here they seemed denser, more compact.
Older.
The silence was profound, yet it wasn't an absolute void. There were always sounds for those who knew how to listen. The distant echo of dripping water, the occasional snap of stone adjusting under the weight of the mountain above, the nearly imperceptible whisper of air moving through narrow passages. This place was alive—not in a biological sense, but structurally. It was an organism of stone and pressure.
Yukeli took his first step.
His foot touched the ground carefully, the sole sensing every irregularity of the cold rock. He waited, testing his balance. Nothing happened. Then he took another step. And another. He moved slowly, not out of excessive caution, but from a mathematical necessity for conservation. Wasting unnecessary energy in that state would be more than an error; it would be stupid.
As he walked, his mind worked in the background, analyzing, reorganizing, and calculating. He focused again on his primal essence.
[46/500]
The number remained present in the back of his perception, like a wound that didn't ache but whose existence he couldn't ignore. It was little. Dangerously little. However, it wasn't zero, and that meant he still had options. He needed to understand the exact cost of his current existence.
He raised his right hand slowly and pressed it against the wall beside him. The stone was cold, solid, and resistant. He closed his eyes, concentrating not on brute force, but on pure intent. His ability responded like an electric whisper beneath his skin. The stone under his fingers gave way slightly, sinking less than a millimeter, becoming momentarily malleable like clay under the pressure of his will.
At the same time, he felt the drain. It was small, almost insignificant, but the system registered the impact immediately.
[45/500]
One unit. Exactly one. He opened his eyes slowly, observing the small digital mark he had left on the ancient rock.
'…So even this has a cost.'
He wasn't surprised. It was logical. In the universe, nothing came without a cost; energy merely changed form, and his was being traded for authority over matter. Small interferences, small structural manipulations: a minimum cost of one unit.
He withdrew his hand and observed the surface. There was no real damage, only a microscopic imperfection—a testament that he could bend the world around him, provided he was willing to pay the price.
He continued walking, and his mind drifted back to the frantic struggle against the serpents. The spikes that erupted from the ground, the walls that rose to block venomous fangs... he clearly remembered the sensation of catastrophic drainage. At that time, he had no numbers before him, but now he could estimate the scale of his waste.
Creating a small indentation: 1 unit.
Creating spikes large enough to pierce a human-sized serpent: likely dozens.
Creating thick barriers to block multiple attacks: hundreds.
That explained why his essence had dropped so rapidly. During the fight, he had received notifications that his existence "had become" more defined with every kill. He understood now: primal essence was replenished by the system whenever he eliminated a threat, as if he were absorbing the vitality of the fallen.
If he had used his ability more surgically, he could have kept the reservoir full, gaining energy at the same rate he lost it. He had been inefficient, not out of ignorance, but from a lack of practical experience. He didn't know the limits, the costs, or the alternatives.
Now, he knew a little more. And that changed everything. If he had focused on smaller, more lethal and precise manipulations, perhaps he could have killed more serpents at a lower cost. Perhaps he could have preserved his essence and avoided the desperate flight. Perhaps he wouldn't have had to let so many people die miserably in the dark.
But regret was a useless emotion, a waste of mental energy with no practical return. He survived. That was the only result that mattered in the final accounting. And to survive meant to learn. Always.
He stopped again and rested his hand on the floor. This time, he tried something different: instead of pushing the stone down, he tried to lift it against gravity. The response came, but with much greater tactile resistance. A small fragment of rock, the size of a fingernail, rose a few millimeters.
[44/500]
One unit. The numerical cost was the same, but the felt resistance was superior. Interesting. This suggested that the cost was not determined solely by the mass altered, but by the complexity of the change and the natural resistance of the material. Creating spikes required shape, direction, intent, and structural integrity. It was a much more complex geometry than a simple push or pull.
He withdrew his hand, deciding to cease the testing. Each unit was too precious to be spent on pure curiosity. He resumed his walk, his bare feet feeling the biting cold of the rock, while his senses remained sharp.
It was then that the sound returned with more clarity. Water. It was no longer just a rhythmic dripping, but the sound of a continuous flow. He turned his head and followed the metallic melody of liquid against stone.
As he advanced, the air began to lose that stagnant smell of mold and blood. It became lighter, almost charged with a subtle static electricity. Then, he saw it: a vertical fissure in the wall from which a trickle of crystal-clear water flowed. The water slid down the mineral surface before falling into a natural depression, forming a small pool.
Yukeli knelt before the puddle. The water was incredibly clear, almost luminous under his Awakened vision. He hesitated for a second, analyzing the visual purity of the liquid, and then brought his hand to the water. It was ice-cold. He drank.
The impact was immediate. The dryness in his throat was replaced by a coolness that seemed to spread through his veins. It didn't recover his essence, but it stabilized his mind. He drank again, but stopped shortly after. Excess was a form of weakness, a lack of control over impulses that he would not allow himself to have.
He observed the flow. The water came from somewhere beyond that wall. He stood up and followed the slope of the fissure, which gradually transformed into a natural passage. The air changed drastically. It grew fresher, purer... more impossible.
He continued walking until the passage opened into a chamber that defied all geological logic he knew.
Yukeli stopped. His eyes widened slightly, one of the rare times his expression showed anything close to shock. Before him, the cave had transformed into a sanctuary of light and mineral life.
It was a small grove within the bowels of the earth. But these were not trees of wood and sap. Their trunks were translucent, made of an opaque crystal that glowed with an internal pulsing light, as if luminous blood ran through living veins inside the quartz. The leaves were not green; they glowed in shades of deep blue, soft violet, and a pale gold that seemed to float in the energy-charged air.
Crystals grew from the ground like exotic flowers, some delicate, others massive like the pillars of a forgotten temple. The water he had followed now ran in small streams between the glass trees, reflecting the bioluminescence in hypnotic patterns that danced on the cave walls.
The air there was dense, charged with an energy he could feel vibrating in his own essence channels. It was an ecosystem that shouldn't exist. It was beautiful, lethal, and alien.
Yukeli stood in silence for a long time. He simply absorbed the image, processing the implications of that discovery. At that moment, the last doubt he might have harbored in the depths of his consciousness was finally crushed by the visual evidence.
The flora, the energy, the structure of the matter around him... none of it belonged to the world he had left behind. The confirmation was silent, absolute, and irrevocable.
He was not on Earth. He was in something new. And if the world was new, the old rules were nothing but dust.