When reports of a mummy terrorizing the New Mouse City Museum flood the Rodent's Gazette's telephone lines, Geronimo Stilton, editor-in-chief, searches for an explanation to prove that there is no mummy.

For the seventh time Geronimo Stilton finds himself in the Kingdom of Fantasy--this time Blossom, Queen of the Fairies, needs him to find the seven enchanted charms before the evil Wizard of the Black Pearl can get to them.