"My sister Thea and my cousin Trap were not getting along! When Grandfather found them arguing over who would get to join me on a trip to Brazil, he forced us all to go together. My friend Isabela needed my help finding a mysterious emerald. Could Trap and Thea stop shouting their snouts off long enough to help find the stone?"--Back cover.

Grandfather Shortpaws sends Geronimo Stilton on a hunt for his old friend, the Red Bandit, in Arizona.

Asked by a Bollywood star for help protecting a valuable ruby, Geronimo Stilton and Hercule Poirat are inadvertently cast in the actress's film in spite of limited acting skills and are horrified when an anonymous thief makes off with the ruby.--

Friends of the spacemice have disappeared on a strange ice planet, Polarix! Geronimo Stiltonix and his crew are called to search for them. When the spacemice arrive on Polarix, they're surprised at the inhabitants -- cute little aliens that look like colorful fuzz balls! But are these creatures as harmless as they look?

Geronimo explores a haunted mansion populated by ghosts.

Traveling to the planet Jurassix to warn its inhabitants of an imminent comet strike, Geronimo Stilton and his crew encounter ferocious, dinosaur-like beasts who have an appetite for rodents.

Geronimo follows clues in a diary all the way to Mouse Everest in search of his old friend Professor von Volt who has mysteriously disappeared.

When director Mousen Scorsese's newest film goes missing at New Mouse City's first film festival, Hercule and Geronimo spring into action to solve the case.

"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 tgive me a crash course in savings. Yikes! Could I learn to be less wasteful without turning totally stingy" -- back cover.

Creepella's father, Boris von Cacklefur, is a finalist in the Fright Night poetry competition, but when Boris suddenly vanishes during the contest, it is up to Creepella and her friends to investigate.