Biologija 8 | 2 Del Resitve

She was halfway to the exit door when she froze. She heard breathing. Not hers.

Her brain, the central command, was working overtime to build a mental map of her body in space. Without vision, it had to rely entirely on these internal whispers.

The Echo in the Dark

She stood up slowly. Her legs felt wobbly, not because she was scared, but because her brain was missing its usual cheat sheet. Deep inside her muscles and tendons, tiny receptors——were firing off frantic signals. Left knee is bent at 110 degrees. Right ankle is stable. The quadriceps are tensing.

She was sitting in the middle of the school’s pitch-black auditorium. Around her, 30 classmates were silent. Their biology teacher, Mr. Kovač, had given them a challenge: “Turn off your sight. Find the way out using only the tools your body hides inside.” biologija 8 2 del resitve

She pushed it open. The hallway was empty, lit by a dim emergency light. She blinked. Her pupils constricted violently. Her —specifically the cones, which handle bright light and color—flooded her brain with signals.

Lena placed a hand on a cold, metal railing. The touch sent a signal racing up her spinal cord—through sensory neurons—straight to her somatosensory cortex. Cold. Smooth. Solid. The touch was an anchor. Her brain used this new data to override the false feeling of tilting. She was halfway to the exit door when she froze

Her heart rate spiked. The kicked in—the part of the nervous system you can’t control. Her pupils dilated (though there was no light to take in), her palms sweated, and her liver released a burst of glucose into her blood for instant energy.

She snapped her fingers. Snap.

A wave of dizziness hit her. She felt like she was tilting to the left. But she wasn’t.

Lena squeezed her eyes shut. The world disappeared. But only for a moment. Her brain, the central command, was working overtime