After stumbling upon a clue in the public library, Anthony searches for the treasure long rumored to have been hidden by a wealthy, eccentric citizen of their small town.
While spending the summer in an old house on a desolate Canadian island, Anthony Monday and Miss Eells discover a chest that can transport them to another world and a maniacal group who are plotting the destruction of people on Earth.
Fourteen-year-old Anthony Monday of Hoosac, Minnesota, and his friend Miss Eells, the Hoosac librarian, try to stop an evil wizard from turning the world into an icy wasteland.