Trolls: Restoring The Balance

DISCLAIMER: WRITTEN BEFORE AUTHOR KNEW ABOUT TROLLS BAND TOGETHER

Part 1:
The Troll World is one big party once more, with everyone celebrating each other's differences!
But one Troll's differences are just part of something more ancient, and a month after Queen Barb's World Tour, something supernatural awakens that could change the world forever.
When the Party Crashers go after a magical stone called the Black Rock, it's up to Poppy, Branch, Willow, and their friends and family to find it before their old foes do and save their whole world from a Dark curse.
They're gonna need more cake.

Part 2:
Trollkind has entered a Dark age. During the mission to destroy the Black Rock and lift Callisto's curse, a Party Crasher named Pow steals the magical stone and goes rogue. After a fight that causes Poppy to lose her memory, Pow vanishes into the night, and no one knows where she went. But they all know she will return.
While Pow learns to control the Black Rock's Dark powers, Branch and Willow fill in on Poppy's duties as the Queen of Pop and work together with the rest of the tribe leaders to find a way to stop Pow before she has total control over her newfound power.

Part 3:

Every Troll's worst fear has come true. The Princess of Darkness herself, Callisto, has returned to Earth. With Pow unknowingly at her service, she will stop at nothing to rule the world once more, and destroy the Trolls along the way.
But where there is Darkness, there is Light, and when all seems lost, hope can be found. As long as Willow and her friends never give up, balance will be restored to all things.