October 1987, outside the town of Potter's Hollow, Nebraska. A farmer's son goes missing for three days and returns with a story about the grain silo behind his father's barn—a silo that had stood empty for years, its door rusted shut. He tells of a voice that spoke from the dark, a voice that knew his name, and a pact he made to get out. But when the father goes to investigate, he finds the silo full of grain. Knee-deep, waist-deep, rising. And the voice is still there, waiting for the next bargain. Luna recounts a story her uncle told her once, leaning forward at a kitchen table, coffee gone cold, about the night the silo swallowed a man whole and spat out someone who wasn't quite his son.