- The mysterious message, Geronimo Stilton ; illustrations by Giuseppe Facciotto (pencils) and Alessandro Costa (ink and color) ; translated by Emily Clement
- Help, I'm in hot lava!, Geronimo Stilton ; illustrations by Giuseppe Facciotto (design) and Daniele Verzini (color) ; translated by Emily Clement
- 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
- Geronimo Stilton, text by Geronimo Stilton ; interior illustration by Giuseppe Facciotto and color by Christian Aliprande ; translation by Nanette McGuinness, [6]
- A mammoth mystery, Geronimo Stilton ; illustrations by Giuseppe Facciotto (pencils), Livio Carolina (inks), and Daniele Verzini (colors) ; translated by Julia Heim
- The secret of the snow, Thea Stilton
- Geronimo Stilton, [text by Geronimo Stilton ; script by Demetrio Bargellini ; illustrations by Giuseppe Facciotto], [4]
- The smelly search, Geronimo Stilton ; illustrations by Giuseppe Facciotto (design) and Alessandro Costa (color) ; translated by Lidia Morson Tramontozzi
- The stone of fire, [text by Geronimo Stilton ; illustrations by Giuseppe Facciotto and Daniele Verzini ; translated by Emily Clement]
- Pirate spacecat attack, Geronimo Stilton ; illustrations by Giuseppe Facciotto (design) and Daniele Verzini (color) ; translated by Anna Pizzelli
- Geronimo Stilton Spacemice, We'll bite your tail, Geronimo!, Geronimo Stilton ; illustrations by Giuseppe Facciotto (pencils), Carolina Livio (inks), and Valeria Cairoli and Paolo Vicenzi (color) ; translated by Lidia Morson Tramontozzi, 11
- Stay strong, Geronimo!, Geronimo Stilton ; illustrations by Giuseppe Facciotto (pencils) and Alessandro Costa (ink and color) ; translated by Emily Clement
- The legend of the maze, Thea Stilton ; illustrations by Giuseppe Facciotto [and 4 others] ; translated by Andrea Schaffer
- Watch your tail!, [text by Geronimo Stilton ; illustrations by Giuseppe Facciotto (design) and Daniele Verzini (color) ; graphics by Marta Lorini ; translated by Emily Clement]
- Don't wake the dinosaur!, Geronimo Stilton ; illustrations by Giuseppe Facciotto (design) and Daniele Verzini (color) ; translated by Lidia Morson Tramontozzi