Ten years ago, Elias Thorne’s sister vanished from the secluded coastal village of Oakhaven. Now, a letter written in her handwriting has arrived, inviting him back. But Oakhaven is not on any modern map, and the villagers speak of a “Hollow Tide”—a night when the ocean recedes further than possible, revealing a city of salt and bone beneath the waves. Elias must solve the mystery of the town’s ritualistic silence before the tide goes out one last time, and the things that live in the deep come to claim their due.
