She's no poor unfortunate soul
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Descendants 2 will see Mal (Dove Cameron) go up against an old frenemy in Uma, the daughter of The Little Mermaid‘s Ursula.

As the exclusive book trailer, above, for Melissa de la Cruz’ Rise of the Isle of the Lost reveals, however, this isn’t the first time the girls have gone up against each other, and Uma (played by China Anne McClain) is looking to settle the score.

The latest in the prequel book series sees Uma and Mal (along with Evie, Carlos, and Jay) go head to head as they both race in search for King Triton’s trident — a magical object that would allow Uma to escape the Isle of the Lost — which has since passed through the magical barrier around the Isle of the Lost. Joining Uma on her quest is a pirate crew featuring none other than Harry and Gil, the sons of Captain Hook, and Gaston, respectively.

Rise of the Isle of the Lost will be available for sale May 23 (preorder it here) while Descendants 2 will premiere Friday, July 21 at 8 p.m. ET on Disney Channel, ABC, Freeform, Disney XD and Lifetime.