James Harkow has his worries—as first mate on the corsair ship Morag Rose, he carries the weight of the crew and a drunkard captain to boot. But when his ship makes port in Rodaley, an unexpected diversion awaits him. A mysterious stranger by the name of Castor captures his eye, then his heart as a single tryst becomes a lasting friendship.But there’s more to Castor than meets the eye. He pulls Harkow deeper with every kiss, all the while denying the end he knows must come—the true reason he lures his lover out beyond prying eyes to the shore of sea. Torn between his growing love for Harkow and hunger for the soul he must take, Castor risks all to reveal the truth. In that moment, a deal is struck: nine years together as comrades and lovers, before the sea takes the soul it’s owed.Nine years later, the debt comes due. And if Harkow wants to keep the love he has found in his siren’s arms, he must fight the sea itself.