When Geronimo finds a golden staircase in his attic, it takes him to the Kingdom of Fantasy. He sets off on an incredible adventure to save the Queen of the Fairies!

Geronimo Stilton is entered in the Mouse Island Marathon by his friend Champ Strongpaws who then forces him to train for it.

"My friend Hercule Poirat and I were called to investigate mysterious events at the famouse Grand Hotel in New Mouse City. There was a ghost haunting the hotel and scaring guests! It was wearing clanking armor and carrying a ball and chain. I know that ghosts don't exist, but this was pretty spooky. Would Poirat and I be able to solve the mystery of the haunted hotel?"--Page 4 of cover.

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

"Everymouse on Mouse Island was squeaking about The Super Cup! My two favorite soccer teams, the Squeakers and the Turbo Cheese, had made it to the finals. But something suspicious was happening on the field. The Mighty Mice and the Sewer Rats seemed to be scoring without even trying! Could I get to the bottom of it before my two favorite teams are cheated out of their trophies?"--Back cover.

After receiving a mysterious message summoning him to a meeting, Geronimo Stilton finds himself back in the Kingdom of Fantasy, summoned by the Elves, who want him to travel to the Great Explanatorium to find an answer to the earthquakes that are threatening the Kingdom.

"Rancid rat hairs! I'd been spending so much money lately, I had none left in the bank! Even worse, when my grandfather found out, he sent me off to Moldy Manor. There, miserly Uncle Stingysnout would teach me to be better at saving. How terrible! Could I learn to be less wasteful without going crazy?" --

When a ski trip lands Geronimo Stilton in the hospital, he was sure it was going to be the worst Christmas ever. But his family and friends had something else in mind.

Geronimo Stilton, editor of "The Rodent's Gazette," is looking forward to celebrating Christmas with his nephew, until a series of unfortunate mishaps brings about a change in his plans.