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

"Old Mouse City is in an uproar. The most precious artifact in the mouseum -- the Stone of Fire -- has been stolen! Geronimo Stiltonoot and his cavemouse friend Hercule Poirat are on the case. It's up to them to retrieve the stone from the ferocious Tiger Khan and his band of fearsome felines!"--Page [4] of cover.

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,...

Blossom, Queen of the Fairies, has disappeared, along with three powerful magical objects, the Book of a Thousand Spells, the Crystal Sphere, and the Whispering Wand, and Geronimo Stilton is once again called on to confront an evil wizard, rescue the Queen, recover the objects, and save the entire Kingdom of Fantasy.

Sally Ratmousen broke some shocking news: The Rodent's Gazette was out of money and in danger of closing. Then Grandfather William broke even worse news to me: I needed to sell my comfy, cozy house in order to save our paper! How terrible! But could I sell it -- and find a new home -- in time to help?

When pirate cats threaten Mouse Island, Professor von Volt sends Geronimo Stilton and his friends back through time to ancient Greece, Atlantis, and Stonehenge to try and find out how ancient civilizations were able to find peace and avoid war--only to find that the key to peace was under their whiskers the whole time.

When Thea goes missing along with an ancient Mayan necklace, Geronimo Stilton is fast on the case, scouring Chichň Itz f̉or clues to find them.

The enchanted Winged Ring which Queen Blossom gave to Geronimo is missing, apparently stolen by the dark fairy Wither and her dark crow allies, and whoever possesses it gains enormous power and can travel between the Kingdom of Fantasy and the real world--now nightmares are starting to affect Mouse Island, the entire Kingdom is furious with Geronimo, and it is up to one mouse to set things straight and recover the ring.