Mer-Queen Serapha has been murdered. The already fragile human-merfolk truce is shattered. And as Angie and Kaden find themselves on opposite sides of a rapidly escalating conflict, their loyalties to their families, their people, and each other will be tested.

When news of the merfolk become widespread in Angie's Pacific Northwest town, she fights to protect the mer from those who wish them harm. But as vicious seas consume coastal cities and tragedy strikes her town and her family, she'll need to decide whether to save her family and her people, or her relationship with Kaden and the mer.

In Mer-Prince Kaden's queendom, an unlikely family member takes the throne, sowing dissent among the already fractured queendom and further straining their deteriorating relationship with humans. Branded a traitor for loving a human, he must make a choice between plunging the mer into all-out war, or fighting for the throne to unite his people, but leave Angie behind, as he can never take a human queen.

A cataclysmic war between humans and mer looms, and if Angie and Kaden cannot find a way to bring peace between their people, they'll find their truce shattered beyond repair, and the sea-crossed lovers will find themselves separated forever.

Join them in this romance and action-soaked sequel to Oceansong as they fight to save their relationship and their people while tensions between humans and merfolk reach a breaking point. That is, if the mer don't drown the world in their rage and sorrow first.

Kaden blanched, the growing silence between them unnerving. "Hylin, tell me."

"Shortly after she delivered the last message to you, sh-she was killed."

The rest of the blood drained from Kaden's organs, leaving him cold and hollow. Hylin's wobbly voice sounded as if somewhere far, far away.

"Your Highness, the throne sits empty."