Every spring, the river gave something back.

Not the things people expected. Tomas had lost a wedding ring off the dock in 1974 and the river kept that, the way it kept car keys, fishing knives, a whole bicycle once, and his brother’s laugh the summer before the war. What the river returned was smaller and stranger: a green glass bottle with the cork still in. A child’s red mitten. A pocket watch, ticking, fifty years drowned and ticking.

Tomas was eighty-one the spring the river gave back the letter.

He found it caught in the reeds at the bend, in a tin box gone the color of tea. Inside, folded in oilcloth, was a letter in his own handwriting — his young handwriting, the letters leaning like grass in wind.

If you’re reading this, you stayed, it said. I am writing to find out if staying was worth it.

He remembered writing it at nineteen, the night before he was meant to take the bus north and never come back. He had thrown the box in the river instead, and taken a job at the mill, and married Ana at the parish hall, and buried her forty-eight years later with her rosary in her hands and half the town at the graveside.

Tomas sat on the bank a long time with the letter in his lap. The river moved past, doing its old work, carrying the sky.

“Worth it,” he said at last, to the water, to the boy who had asked. “Not every day. But the sum of it. The sum of it was worth it.”

He folded the letter back into its oilcloth. He thought about throwing it in again, for some other old man downriver to find and argue with. Instead he carried it home and put it in the drawer with Ana’s rosary, where the things a life keeps are kept.

Some things the river keeps. Some things it was only ever holding for you, until you were old enough to answer.