Siren princess Aria is robbed of her voice and heart-scale by the witch Ursula, then sold into the black market by her betrothed, Julian. Pirate King Kaelen rescues her—never realizing she is the little mermaid who saved his life ten years ago. Together they survive a manhunt, an unexpected pregnancy, her mother’s rescue, and a royal conspiracy, exposing King Odric’s murder of Kaelen’s father and abolishing slavery. In the end, Aria reclaims her kingdom, marries Kaelen, and welcomes their daughter, Lyra.
