"Carve the bones. One for the gate, one for the door, two for the mantel, and three for the floor..."

Hyacinth Turning knows the terrors beyond her village, the insatiable hunger of the Teeth. She listens to the sermons given by the Elders in their hare-skin masks. She watches as the heathens hang and the witches burn. They tell her to be good and quiet. But Hyacinth is neither good nor quiet. After a series of tragic events, Hyacinth finds herself hastily wedded and sent far away from all she has ever known to a settlement at the edge of the sea. Where more than just the Teeth are hungry. Another horror swims below, leviathan shadows kept at bay by offerings of flesh and bone.

But no sooner does Hyacinth take root in her new home do the Teeth and the Deep come to feed. Suspicion soon falls upon the outspoken Hyacinth, who spends more time with the outcasted Morgan Carroway than her own husband. The Elders want her burned, her husband wants her hanged, and a long-lost love claws at her dreams, but Hyacinth only wants one thing. A life and death of her choosing.