For sixteen-year-old harpist prodigy Moira, the annual Dairy Princess event in Vanderby is just another lame publicity 'op.' Moira a dairy princess? Get real. Twelve girls have been selected to have their likeness carved in butter and displayed on the Trollholm Bridge. It's a Vanderby State Fair tradition that has been going on for, like, ever.
As far as Moira is concerned, the sooner it's over with the butter—er—better.
About the same time and not far away, three brothers—members of the sensationally popular teen boy band The Griffsons—are in the middle of a much needed road trip to relax from the pressures of their latest tour.
In a flash, however, the kids are suddenly transported to a strange and mystical wilderness where they find themselves in the middle of a deadly tug-of-war struggle between a magical fox named Fossegrim and the monstrous troll Aenmarr of Austraegir. At the heart of the feud is a battle for possession of a mysterious magical fiddle—and an ancient compact between Trollholm and the outer world.
Whatever. All Moira cares about is that eleven of her fellow princesses have been enchanted into a slumber and Moira needs to figure out a way to awaken them…and get home.
Unfortunately for Moira and the Griffsons, nothing in Trollholm is as it seems. Finding a way out of Trollholm may be a lot more difficult than they think.