A year since they were brought together by the Pythia's prophecy, Atalanta and Damien are called together yet again. This time, to address the seemingly unrelated storms, disappearances, and murders happening all around the Mediterranean.
Tasked with putting a stop to Poseidon's destruction, they will have to work with old allies and new to face off against sea monsters, pirates, fearful mortals, sirens, and gods. It's a journey that, if they survive, will change the course of their lives forever.