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.

Trap and Geronimo team up in an attempt to win a race to Boulder Bay and back, a race that supplies the village cheese maker with rare hot lava peppers, and comes with a large cash prize.

"Geronimo decides to buy his aunt's old farm where he used to spend the holidays. It's filled with memories from his childhood! There is a large oak tree in the yard that holds legendary secrets to unlock"--Amazon.

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.

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.

Geronimo, Thea, and Trap are exploring a mysterious old castle built by the founder of New Mouse City. Can they unlock all its rooms and discover its secrets?

"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 opens Mouse Island's first dating agency and hires Geronimo as her assistant, but someone is trying to sabotage their business."--

It's supposed to be a relaxing vacation but instead Geronimo works his tail off fixing up an old castle.

" The fair has come to Mysterious Valley! Creepella is looking to forward a fun, thrilling day of rides and games with her family and friends. But one spooky rollercoaster seems to be making everyone who rides it disappear! Creepella is determined to get to the bottom of the mystery -- but what will happen when she rides the coaster herself?" --