As the youngest daughter of the Siren Queen, Celeste is bound by duty and desperate to prove her worth by joining the Chorus, an elite force of siren warriors. But when she saves Prince Raiden Sharp—a human and the son of a king responsible for siren bloodshed—Celeste breaks sacred law. Spared execution, she’s given a chilling alternative: infiltrate the human world and assassinate the prince. Yet life aboard Raiden’s ship upends everything she thought she knew. As dangerous truths surface and unexpected bonds form, Celeste must choose between loyalty and love—before her decisions ignite a war that could shatter both realms.