To marry a duke’s daughter, her husband throws her into the sea as an offering to Poseidon. But the sea god saves her and offers a bargain: care for his troubled young son in exchange for freedom beneath the waves. When her former husband captures the child who calls her “Mom,” she must face him again. This time, she has a storm-wielding prince at her side—and a god who will defend her freedom, avenge her suffering, and wait for her to choose love.