Although Sanna is a mermaid, she is just partially seavish. A sea-witch used a spell on the night of Sanna's birth to make her people, including her land-based mother, forget how and where she came from. As a sixteen-year-old outsider in the seavish matriarchy, Sanna is now driven to track out her mother and discover who she is. She becomes a witch's apprentice to study the art of making and unmaking, and with a new set of legs and a mission to finish for her teacher, she travels to the Thirty-Seven Dark Islands after following a clue.There, as her fellow mermaids wait in the sea, Sanna stumbles into a wall of white roses thirsty for blood, a hardscrabble people hungry for miracles, and a baroness who will do anything to live forever. From the author of the Michael L. Printz Honor Book The Kingdom of Little Wounds comes a gorgeously told tale of belonging, sacrifice, fear, hope, and mortality.