- All because of a cup of coffee, Geronimo Stilton ; [illustrations by Larry Keys, revised by Topetti & Rattozzi]
- Mysterious eye of the dragon, Geronimo Stilton ; illustrations by Danilo Loizedda, Antonio Campo, Daria Cerchi, and Serena Gianoli ; translated by Andrea Schaffer
- Happy birthday, Geronimo!, Geronimo Stilton ; illustrations by Danilo Loizedda, Antonio Campo, and Daria Cerchi ; translated by Lidia Tramontozzi
- Stilton, Geronimo, Rodent's gazette, #13
- The guardian of the realm, the eleventh adventure in the Kingdom of Fantasy, Geronimo Stilton ; [translated by Julia Heim]
- The temple of the ruby of fire, Geronimo Stilton ; [cover by Larry Keys ; illustrations by Johnny Stracchino and Mary Fontina ; English translation by Joan L. Giurdanella]
- Stilton, Geronimo, Kingdom of Fantasy, 15
- The search for treasure, the sixth adventure in the Kingdom of Fantasy, Geronimo Stilton ; translated by Lidia Morson Tramontozzi
- The test of time, the sixth journey through time, Geronimo Stilton
- Lost treasure of the Emerald Eye, Geronimo Stilton ; [illustrations by Matt Wolf, Mark Nithael, and Kat Stevens]
- The super cup face-off, Geronimo Stilton ; illustrations by Danilo Loizedda, Antonio Campo, and Daria Cherchi ; translated by Emily Clement
- A very merry Christmas, Geronimo Stilton ; [illustrations by Claudius Cernuschi, Guiseppe Di Dio, and Christian Aliprandi ; English translation by Atlantyca S.p.A.]
- Stilton, Geronimo, Rodent's gazette, #3
- Stilton, Geronimo, Rodent's gazette, #1
- Hug a tree, Geronimo, Geronimo Stilton
- Fright night, [text by Geronimo Stilton ; illustrations by Ivan Bigarella and Daria Cerchi ; translated by Lidia Morson Tramontozzi]
- Paws off, cheddarface, Geronimo Stilton
- Geronimo's valentine, Geronimo Stilton ; [illustrations by Giuseppe Ferrario]
- The curse of the cheese pyramid, Geronimo Stilton ; [illustrations by Matt Wolf]
- Have a heart, Geronimo, Geronimo Stilton ; illustrations by Danilo Loizedda, Carolina Livio, Daria Cerchi, and Valeria Cairoli ; translated by Anna Pizzelli
- Stilton, Geronimo, Kingdom of Fantasy, 16th
- Field trip to Niagara Falls, [text by Geronimo Stilton]
- Cavemice, text by Geronimo Stilton ; illustrations by Giuseppe Facciotto (design) and Daniele Verzini (color) ; graphics by Marta Lorini ; translated by Emily Clement, 1
- Time warp, the seventh journey through time, Geronimo Stilton
- It's Halloween, you 'fraidy mouse!, Geronimo Stilton ; [English translation by Joan L. Giurdanella]
- The keepers of the empire, the fourteenth adventure in the Kingdom of Fantasy, Geronimo Stilton ; illustrations by Danilo Barozzi [and 6 others] ; translated by Emily Clement
- Stilton, Geronimo, Rodent's gazette, #2
- Attack of the bandit cats, Geronimo Stilton
- The race against time, the third journey through time, Geronimo Stilton ; illustrations by Danilo Barozzi and Silvia Bigolin ; translated by Julia Heim
- The Hawaiian heist, Geronimo Stilton ; illustrations by Danilo Loizedda, Antonio Campo, and Daria Cerchi ; translated by Anna Pizzelli
- Stilton, Geronimo, Rodent's gazette, #4
- Lost in time, the fourth journey through time, Geronimo Stilton ; illustrations by Danilo Barozzi, Silvia Bigolin, and Danilo Loizedda (design), Christian Aliprandi (color), and Piemme's archives ; translated by Julia Heim
- Stilton, Geronimo, Kingdom of Fantasy, 14
- The dragon of fortune, an epic Kingdom of Fantasy adventure, text by Geronimo Stilton ; cover by Silvia Fusetti ; illustrations by Silvia Bigolin, Federico Brusco, Carla Debernardi, Alessandro Muscillo, and Piemme's Archives ; color by Christian Aliprandi ; translated by Julia Heim
- Geronimo and the gold medal mystery, Geronimo Stilton
- Stilton, Geronimo, Kingdom of Fantasy, 13
- Geronimo Stilton, secret agent, Geronimo Stilton ; [illustrations by Cleo Bianca and Christian Aliprandi]
- Valley of the giant skeletons, Geronimo Stilton ; [illustrations by Claudio Cernuschi and Christian Aliprandi]
- The golden key, Geronimo Stilton ; illustrations by Carla Debernardi, Silvia Bigolin, Lara Martinelli, Andrea Alba Benelle, and Federica Fontana ; translated by Julia Heim
- Down and out down under, [text by Geronimo Stilton]
- The sewer rat stink, Geronimo Stilton ; with Tom Angleberger ; story by Elisabetta Dami ; color by Corey Barba
- The haunted castle, Geronomo Stilton ; [cover and interior illustrations by Claudio Cernuschi and Valentina Grassini ; translated y Julia Heim]
- I'm too fond of my fur!, Geronimo Stilton ; [illustrations by Larry Keys]
- Valentine's day disaster, [text by Geronimo Stilton]
- Stilton, Geronimo, Geronimo Stilton, #76
- The sticky situation, Geronimo Stilton ; [illustrations by Danilo Loizedda, Antonio Campo, and Daria Cerchi ; translated by Anna Pizzelli]
- Red pizzas for a blue count, Geronimo Stilton ; [translated by Edizioni Piemme]
- The hour of magic, the eighth adventure in the kingdom of fantasy, Geronimo Stilton
- A fabumouse vacation for Geronimo, Geronimo Stilton
- The secret of Cacklefur Castle, Geronimo Stilton ; [illustrations, Larry Keys, Blasco Tabasco, and Toffina Sakkarina ; English translation by Edizioni Piemme S.p.A.]