Descendants 2 Junior Novel

Mal, Evie, Carlos, and Jay may be the children of terrible villains, but they're fitting in amazingly well on Auradon.
Well, at least most of them are.
For Mal, the pressure to be royally perfect is too intense, so she returns to her rotten roots on the Isle of the Lost. But Mal soon finds that her archenemy, Uma, the daughter of Ursula, has taken her spot as self-proclaimed Princess of Evil. Even worse, Uma has a plan to destroy Auradon-and a gnarly gang of pirates to back her up!
It's a classic battle between wicked and evil . . . and these kids are made for trouble.