Fort Morgan Public Library

Geronimo Stilton, editor of The Rodent's Gazette, goes on an investigative, underground adventure through New Mouse City to find a missing document.

Geronimo and his friends travel to his cousin Stevie Stingsnout's wedding far away on Cheap Change Hill and run into trouble.

Holey cheese, it was strange! All across New Mouse City, rodents kept telling me I'd done things I had no memory of. Was I going crazy? Had the cheese finally slipped off my cracker? No, that wasn't it. I soon discovered the truth: There was a Geronimo lookalike going around, pretending to be me! He'd even fooled my sister Thea. Worst of all, he was trying to take over The Rodent's Gazette! I had to get that greedy impostor's paws off my newspaper--...

Geronimo goes to Athens to report on the Olympics, and after observing some of the games he and detective Hercule Poirat become suspicious about Cyrus von Snootrat who seems to be winning every Olympic event and they decide to investigate him.

Geronimo and friends go to the Egyptian Museum just before Halloween to investigate what seems to be a real live mummy.

"Moldy mozzarella! It was only a few days before Halloween when all of the pumpkins in New Mouse City disappeared. A thief was on the loose, and there was only one person I could count on to help me solve this peculiar mystery--my detective friend Hercule Poirat. But would we be able to figure out what was going on in time to save Halloween?" -- p. [4] of cover.

Geronimo Stilton goes with his friend Bruce Hyena to climb to the top of the famouse Mount Kilimanjaro in Africa.

Geronimo and his friends set sail to the Ratlapagos Islands to search for a sunken treasure. He soon begins to suspect that they aren't the only ones looking for the treasure.

"When Paulina gets a phone call from home telling her that a friend is missing, the Thea Sisters travel to Peru to help solve the mystery. There, the five mice climb the Andes Mountians in search of a missing archeologist. Along the way, they stumble upone clues leading them to a mysterious hidden city. Will the Thea Sisters find Paulina's friend, and the traesure of the Secret City?" -- P. [4] of cover.

When an evil professor begins threatening New Mouse City with terrible inventions, Geronimo Stilton is enlisted by local authorities to embark on a top-secret mission to outer space to thwart a nefarious plot.