Thomas brought Charlotte to Naxos expecting solitude. Instead, the island is waiting for him. At his centuries-old villa overlooking the Aegean, old memories begin colliding with something increasingly dangerous along the coast. A mysterious presence in the sea seems connected to Thomas's past, strange events are occurring around the island, and an uneasy balance that has existed for generations is beginning to fail. Whatever is moving through the waters does not need brute force to destroy them. It can influence desire. Cloud judgment. Strip away choice. As Rane, Fenna, Griffith, and the rest of the Learmonth family are pulled into the conflict, Thomas must confront a part of his past he believed had been left behind centuries ago. On Naxos, beauty has always hidden dangerous things. This time, one of them wants Thomas.