The machine in the basement is just a chair, a screen, and a thin needle of cold blue light. Mara built it from her dad's old notes after the funerals. Seven times this week she has watched her brother Eli die. Every loop ends the same way: the river behind the highway takes him before she can shout his name. Tonight the screen shows a glowing thread for each day. One thread is Saturday afternoon. She can cut it like a loose stitch. Her hand hovers over the light.

Mara pulls her hand back. She can't cut a piece of her brother's life without knowing what it does. Instead she leans in and studies the glowing threads. Saturday isn't a single line. It splits into dozens of smaller strands, all tangled together. One of them, thin and red, runs straight from the house to the river. She zooms in on it.

Instead of cutting, Mara tries something new. She pinches the red strand and gently pulls it sideways, away from the river. The screen shows Saturday rewriting itself in real time. Eli still leaves the house at 3:14, but now he turns left toward town instead of right toward the highway. She holds her breath and lets go.