A way to survive. A way to serve. A way to save. Simi prayed to the gods, once. Now she serves them as Mami Wata—a mermaid—collecting the souls of those who die at sea and blessing their journeys back home. But when a living boy is thrown overboard, Simi goes against an ancient decree and does the unthinkable—she saves his life. And punishment awaits those who dare to defy the gods. To protect the other Mami Wata, Simi must journey to the Supreme Creator to make amends. But all is not as it seems. There's the boy she rescued, who knows more than he should. And something is shadowing Simi, something that would rather see her fail . . . Danger lurks at every turn, and as Simi draws closer, she must brave vengeful gods, treacherous lands, and legendary creatures. Because if she fails, she risks not only the fate of all Mami Wata, but also the world as she knows it.

The highly anticipated sequel to the New York Times bestseller Skin of the Sea, in which the world must pay the price for one mermaid's choice, and a dark force reverberates across realms. Perfect for fans of Children of Blood and Bone and those eagerly anticipating the live-action film adaptation of The Little Mermaid. One life. One choice. One sacrifice. To save those closest to her, Simi traded away everything: her freedom, her family, and the boy she loves. Now she is sworn to serve a new god, watching over the Land of the Dead at the bottom of the ocean. But when signs of demons begin to appear, it's clear there are deeper consequences of Simi's trade. These demons spell the world's ruin . . . and because of Simi, they now have a way into the human realm. With the fate of the world at stake, Simi must break her promise and team up with a scheming trickster of a god. And if they succeed, perhaps Simi can also unbreak her heart along the way, and find herself again.