"In graphic novel format, follows the adventures of Isabel Soto as she researches mummies from around the world"--Provided by publisher.

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.

"No one loves Halloween more than George Beard and Harold Hutchins. Join the two best friends and their superhero pal, Captain Underpants, in this terrifying and totally funny two-story collection! First, George and Harold go teeth-to-teeth against a ghost dentist when their spooky campfire story comes to life! Then, George and Harold have to face a terrifying T.P. mummy after their most epic prank ever goes down the drain. Can Captain Underpants...