Melaina and Thalia both now know that it wasn't Hades who had murdered her mom and tried to kill her and her siblings when they were younger like she was led to believe. With this newfound information, Mel and Thalia then set their sights on the other gods or goddesses who could have possibly held such a hatred for her father as well as them. They dive and explore both their newfound powers and abilities while the strength of their friendship is being tested on their journey. Along the way, the two girls meet Castor, twin brother to Pollux, who stirs up unwanted attention and problems for them all. Their journey for the truth sends them to the underwater kingdom of the Aegean sea, home to Poseidon, for her answers. However, Mel must fight her hardest problem yet: her feelings. Sequel to The Daughter of Hades