What if Santa does exist? And what if he has spies...as well as dangerous enemies...who have infiltrated your town? Jack Sheldon asks himself these questions as he navigates 7th Grade at Bells Moor Middle School, itself an epicenter of strange phenomena. Jack's goofy buddy Brett disappears from the boys' room, leaving an icy puddle behind. While cutting class, Jack's delinquent friend Evan peeks into the music room; Evan sees floating mallets playing glockenspiels and is committed to a psychiatric ward. Jack confronts his bumbling music teacher, Mr. Kobold, who identifies himself as one of Santa's Helpers and seems to have extraordinary powers. Mr. Kobold explains that grotesque Antarctic elves are hatching treasonous plots against St. Nick's current regime. Is Mr. Kobold delusional, or is a Polar conflict connected to the supernatural events? Why would evil forces choose to abduct Jack's peers? Could there be a civilization at the top of the world ruled by...? Jack and his 'tween posse travel to the ends of the earth, where Jack discovers that his destiny is linked to Christmas legends.