Dark and romantic young adult fantasy for fans of Sarah J. Maas about a siren with a taste for royal blood and the prince who has sworn to destroy her. Princess Lira is a royal siren and the deadliest of them all. With the hearts of seventeen princes in her collection, she is revered across the sea. Until a twist of fate forces her to kill one of her own. To punish her daughter, the Sea Queen transforms Lira into what she despises most - a human. Stripped of her song, Lira has until the winter solstice to deliver the heart of Prince Elian to the Sea Queen or remain a human forever. The ocean is the only place Prince Elian calls home, even though he is the heir to the most powerful kingdom in the world. Hunting sirens is more than an unpleasant hobby - it is his calling. When he saves a drowning woman in the ocean, she is more than she seems. She promises to help him find the key to destruction.