When Geronimo's sister Thea gets into trouble while searching for treasure on Easter Island, he and his friends come to help.

Geronimo Stilton's ancestor, Geronimo Stiltonoot, searches for Tiger Khan's missing flag to prevent chaos during the annual cavemouse sports competition.

When the Cavemice discover a giant oyster in the lagoon near Old Mouse City, they call on Geronimo Stiltonoot to help them fish it out of the water before the saber-toothed tigers find the pearl.

"MouseStar 1" is surrounded by floating space junk! It's yucky -- and dangerous. It's coming from a nearby planet, Cleanix. Geronimo Stiltonix goes to visit, and discovers that the aliens there are very wasteful. Even worse, robots that they've thrown in the trash have started to rebel! Can the spacemice restore harmony before the robots take over?

When Geronimo Stilton learns someone wants to steal the antique silver skates being offered as a prize in Mouse Island's annual winter Ice Skating Championships, he races to uncover the mysterious thief and save the prize.

Geronimo's hadly a sportsmouse, so why would someone send him handlebars? Join Geronimo on a fur-raising ride across the United States! Along with his friend Bruce Hyena, Geronimo is about to cycle over 4,800 kilometres across deserts and mountains, in the famous Race Across America. Cheese niblets!

"Professor Greenfur, the onboard scientist on spaceship MouseStar 1, has changed color from green to--orange! What's going on? To find out, the spacemice travel to his home planet of Photosyntheson. There, they learn that all of Professor Greenfur's relatives are being threatened by the nibblix, tiny aliens with very sharp teeth! Can the spacemice help in time?" --

"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?"--P. [4] of cover.

Geronimo and his friends discover a huge oyster with an enormous pearl inside. After a feature article in the Rodent's Gazette, can they protect it from being stolen?

Sometimes a busy businessmouse like me needs a nice, relaxing vacation. But of all the rotten rats' luck -- every time I tried to get away, disaster struck. My aunt Dizzy Fur's mouse hole caught on fire, my office was flooded, and our printing press broke down! When I was finally ready to depart, all the good trips were booked up. I was stuck in a flea-ridden old hotel, sharing a room with a bunch of Gerbil Scouts! I couldn't wait to get back to my...