- 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
- The guardian of the realm, the eleventh adventure in the Kingdom of Fantasy, Geronimo Stilton ; [translated by Julia Heim]
- Alien escape, Geronimo Stilton ; [Illustrations by Giuseppe Facciotto and Daniele Verzini ; translated by Emily Clement]
- Flight of the Red Bandit, Geronimo Stilton ; illustrations by Giuseppe Facciotto (design) and Christian Aliprandi ; translated by Lidia Morson Tramontozzi
- The hunt for the secret papyrus, plus a bonus mini mystery and cheesy jokes, Geronimo Stilton ; translated by Lidia Morson Tramontozzi and Andrea Schaffer
- Slurp monster showdown, Geronimo Stilton
- Hug a tree, Geronimo, Geronimo Stilton
- Thea Stilton and the Hollywood hoax, text by Thea Stilton ; illustrations by Barbara Pellizzari and Chiara Balleello ; translated by Emily Clement
- Island of Dragons, the twelfth adventure in the Kingdom of Fantasy, Geronimo Stilton ; [illustrations by Silvia Bigolin, Ivan Bigarella, Alessandro Muscillo, and Christian Aliprandi ; translated by Julia Heim]
- Sea monster surprise!, Geronimo Stilton ; illustrations by Giuseppe Facciotto (design) and Alessandro Costa (color) ; translated by Andrea Schaffer
- The Hawaiian heist, Geronimo Stilton ; illustrations by Danilo Loizedda, Antonio Campo, and Daria Cerchi ; translated by Anna Pizzelli
- Lost in translation, by Geronimo Stilton
- Garbage dump disaster, Geronimo Stilton ; illustrations by Giuseppe Facciotto, Carolina Livio, Daria Cerchi, and Valeria Cairoli ; translated by Anna Pizzelli
- 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
- The sewer rat stink, Geronimo Stilton ; with Tom Angleberger ; story by Elisabetta Dami ; color by Corey Barba
- Treasures of the Maya, Geronimo Stilton ; translated by Anna Pizzelli
- The super cup face-off, Geronimo Stilton ; illustrations by Danilo Loizedda, Antonio Campo, and Daria Cherchi ; translated by Emily Clement
- The haunted dinosaur, Geronimo Stilton ; illustrations by Ivan Bigarealla (pencils), Antonio Campro (inks) and Daria Cerchi (color) ; translated by Lidia Morson Tramontozzi
- The search for treasure, the sixth adventure in the Kingdom of Fantasy, Geronimo Stilton ; translated by Lidia Morson Tramontozzi
- Surfing for Secrets, Geronimo Stilton
- Away in a star sled, Geronimo Stilton ; illustrations by Guiseppe Facciotto (design) and Daniele Verzini (color) ; translated by Anna Pizzelli
- The race against time, the third journey through time, Geronimo Stilton ; illustrations by Danilo Barozzi and Silvia Bigolin ; translated by Julia Heim
- The wizard's wand, the ninth adventure in the Kingdom of Fantasy, Geronimo Stilton ; [translated by Julia Heim]
- The great mouse race, [text by] Geronimo Stilton ; [translated by Julia Heim ; illustrations by Giuseppe Facciotto and Daniele Verzini]
- The fast and the frozen, Geronimo Stilton ; illustrations by Giuseppe Facciotto (design) and Daniele Verzini (color) ; translated by Julia Heim
- Rescue rebellion, Geronimo Stilton ; illustrations by Giuseppe Facciotto (design) and Daniele Verzini (color) ; translated by Lidia Morson Tramontozzi
- The phantom of the theater, Geronimo Stilton ; illustrations by Ivan Bigarealla, Antonio Campro and Daria Cerchi ; translated by Anna Pizzelli
- The cheese experiment, Geronimo Stilton ; illustrations by Andrea De Negri (design) and Valentine Grassini (color) ; translated by Lidia Morson Tramontozzi
- Time warp, the seventh journey through time, Geronimo Stilton
- Thea Stilton and the treasure seekers, Geronimo Stilton ; [text by Thea Stilton ; translated by Julia Heim]
- The invisible planet, Geronimo Stilton ; illustrations by Giuseppe Facciotto (pencils), Carolina Livio (inks), and Serena Gianoli and Paolo Vicenzi (color) ; translated by Julia Heim
- Have a heart, Geronimo, Geronimo Stilton ; illustrations by Danilo Loizedda, Carolina Livio, Daria Cerchi, and Valeria Cairoli ; translated by Anna Pizzelli
- The mysterious message, Geronimo Stilton ; illustrations by Giuseppe Facciotto (pencils) and Alessandro Costa (ink and color) ; translated by Emily Clement
- The helmet holdup, Geronimo Stilton
- Geronimo Stilton, the graphic novel, text by Geronimo Stilton ; story by Elisabetta Dami ; illustrations by Tom Angleberger ; translated by Emily Clement ; color by Corey Barba ; lettering by Kristin Kemper
- You're mine, captain!, Geronimo Stilton
- Cyber-thief showdown, Geronimo Stilton ; illustrations by Giuseppe Ferrario (design), Roberta Cianchi (pencils) ; translated by Anna Pizzelli
- The chocolate chase, Geronimo Stilton ; illustrations by Danilo Loizedda (design) ; Antonio Campo (pencils) ; Daria Cerchi and Serena Gianoli (color) ; translated by Anna Pizzelli
- A mammoth mystery, Geronimo Stilton ; illustrations by Giuseppe Facciotto (pencils), Livio Carolina (inks), and Daniele Verzini (colors) ; translated by Julia Heim
- The dragon crown, Geronimo Stilton ; illustrations by Giuseppe Facciotto and Alessandro Costa ; translated by Lidia Morson Tramontozzi
- The hunt for the Colosseum ghost, Geronimo Stilton ; translated by Anna Pizzelli
- Famouse fjord race, Geronimo Stilton ; illustrations by Giuseppe Facciotto and Alessandro Costa ; translated by Julia Heim
- The phoenix of destiny, an epic Kingdom of Fantasy adventure, Geronimo Stilton
- Operation: secret recipe, Geronimo Stilton
- Pirate spacecat attack, Geronimo Stilton ; illustrations by Giuseppe Facciotto (design) and Daniele Verzini (color) ; translated by Anna Pizzelli
- The journey through time, Geronimo Stilton ; translated by Lidia Tramontozzi
- No time to lose, the fifth journey through time, Geronimo Stilton ; illustrations by Danilo Barozzi, Silvia Bigolin, Carla De Bernardi, and Alessandro Muscillo (pencils), Christian Aliprandi (ink and color), and Piemme's Archives ; translated by Shannon Decker
- The secret of the crystal fairies, Geronimo Stilton ; [text by] Thea Stilton ; [translated by Anna Pizzelli]
- The mummy with no name, [text by Geronimo Stilton ; illustrations by Roberto Ronchi, Christian Aliprandi and Davide Turotti]