A skeleton is rattling its way out of the closet marked “FAMILY SECRET! KEEP OUT!” Allyson Peterson believes that being hanged by the Salem High Witches is the absolute worst thing that can happen. But when her powers, wrested from the trolls of ancient Sweden, manifest themselves, she realizes that a prank hanging by vindictive cheerleaders is the least of her worries. Ally accidentally sends her parents to the jungle to fight anacondas, turns her brother into a mute, and curses the entire cheerleading team with an illness that has no cure, proving that her spells need a little checking. Her Swedish grandmother shows up to help her through the worst part of all—surviving the Troll Trials and saving the guy of her dreams from a vengeance that has festered through-out generations. The power is in her, if she can just get the magic right.