In the beautiful city of Merellä, Ulla, Pan and Eliana made an incredible discovery. Determined to learn more, they embark on a quest that takes them across the world, to find an ancient city that may hold the key to Ulla's heritage. But powerful enemies are close behind - and they're catching up fast.
While Ulla and Pan race to unlock the past, they discover an earth-shattering secret. This will challenge everything they thought they knew about the troll world. And Eliana must make a difficult choice, with far-reaching consequences. As their enemies draw closer, even the strongest bonds of friendship will be tested. But will they break at last?