Divine

When Persephone is kidnapped by a god and taken to the Underworld, she doesn't understand what's going on. Her mother never told her about other gods and just wanted to keep her daughter away from them at all costs. But now Persephone - Percy - is forced into the divine world. But this world is now a prison for her. The only person who seems to understand what she is going through is a human who has also been taken from his family to this place. But even he is keeping secrets from her, such as who Haden - her kidnapper - is relative to the gods' world.
And all while Percy is held hostage in the Underworld, her mother, Demeter, is trying to understand the fact that her daughter has gone missing and no one will help her discover who has kidnapped her. She believed that Zeus would be the one to help the most since he is Percy's father but instead he does the opposite.