Leo skipped across the backyard with one shoelace dragging behind him. He turned toward the fence — and Sam turned at the exact same moment. Leo hopped on one foot. Sam hopped on one foot. Both of them grabbed the fence post with both hands. Leo stopped dead. Sam stopped too, but his eyes stayed wide and unblinking.
The next morning, Leo's left pinky toe looked gray — smooth and hard as river stone. It clicked softly against the kitchen tiles with every step. He wiggled it, and it wiggled back, but when he stomped his foot, the toe stayed perfectly still. He pulled on his socks and tied his laces tight, but the click followed him downstairs anyway.
Days passed, and the gray crept upward. His knees grew stiff and square, his voice dropped into a rasp when he spoke. He caught his reflection in the hallway mirror — it lagged a half-second behind him. Leo covered the mirror with a towel and avoided the windows. But at night, he heard Sam's door creak open and soft footsteps pad across the shared grass.
Leo peeled back the towel and stared. His own face grinned back at him — a smile he wasn't making. The reflection's lips moved on their own. 'You're almost all the way over,' it said, and Leo's mouth stayed shut. His fingers began to gray at the tips as he reached for the mirror frame.
Leo grabbed the mirror frame and hauled it toward the open window. His fingers grew grayer by the second. He threw the mirror into the backyard grass — it shattered into a thousand pieces. For a moment, both Leo and Sam stood frozen, breathing hard, staring at the broken glass scattered across the lawn.
Sam stood at the fence, blinking slowly. Then he raised one hand — not copying Leo, just a small wave. Leo wiped his face. His skin felt soft again. He waved back, watching as the gray receded from his fingertips like tide pulling away from stone.
Sam walked across the shared grass and stood at the fence. Leo reached his hand through the slats. Sam took it. His fingers were warm and entirely his own. No click. No gray. Just a handshake between two boys who had both seen the same impossible thing.
Leo knelt beside a puddle left by the evening rain. He looked down and saw his own face — still himself, perfectly his own. He smiled. The puddle smiled back. Behind him, Sam leaned against the fence, watching the sky turn pink and gold, neither of them speaking, just existing side by side.
Leo skipped across the backyard the next morning with both shoelaces tied. He turned toward the fence and saw Sam turning the same way. Leo hopped on one foot. Sam did not hop. Sam just waved, and Leo waved back, walking on his own two feet, completely himself.
Inside, the kitchen tiles were quiet. Leo's feet clicked normally — left, right, left, right. He dragged a hand across the hallway wall where the mirror used to hang. A faint rectangle of dust marked where it had been. He did not put another mirror up.
At night, Sam's door did not creak open. The shared grass stayed still. Leo lay in bed and listened to the house settle, to the wind moving through the trees, to the ordinary sounds of an ordinary neighborhood. He slept without humming.
Leo dreamed of a mirror that showed exactly what was there — nothing more, nothing less. He dreamed of a puddle that reflected only the sky. He dreamed of a boy walking across green grass with both shoelaces tied, and for the first time in a long time, he dreamed of walking forward without looking back.