- The treasure of the Viking ship, text by Thea Stilton ; art by Michela Frare ; translation by Nanette McGuinness
- Mouselets in danger, Thea Stilton ; illusrations by Barbara Pelizzari and Davide Turotti ; translated by Lidia Morson Tramontozzi
- Thea Stilton and the Hollywood hoax, text by Thea Stilton ; illustrations by Barbara Pellizzari and Chiara Balleello ; translated by Emily Clement
- Mice take the stage, Thea Stilton ; illustrations by Barbara Pellizzari and Alessandro Muscillo ; translated by Julia Heim
- Thea Stilton and the Black Forest burglary, text by Thea Stilton ; illustrations by Barbara Pellizzari and Flavio Ferron ; translated by Anna Pizzelli
- The dance of the star fairies, Thea Stilton ; cover art by Iacopo Bruno, Caterina Giorgetti, Christian Aliprandi, and Giovanna Ferraris ; illustrations by Giuseppe Facciotto, Chiara Balleello, Barbara Pellizzari, Valeria Brambilla, and Alessandro Muscillo; graphics by Daria Colombo ; translated by Julia Heim
- The secret of the crystal fairies, Geronimo Stilton ; [text by] Thea Stilton ; [translated by Anna Pizzelli]
- Thea Stilton and the Venice masquerade, text by Thea Stilton ; translated by Emily Clement ; illustrations by Barbara Pellizari (design) and Flavio Ferron (color)
- Thea Stilton and the rainforest rescue, text by Thea Stilton ; translated by Lidia Tramontozzi
- Thea Stilton and the Niagara splash, Thea Stilton ; illustrations by Barbara Pellizzari and Flavio Ferron ; translated by Andrea Schaffer
- The Land of Flowers, text by Thea Stilton ; cover by Caterina Giorgetti (design) and Flavio Ferron (color) ; illustrations by Giuseppe Facciotto (layout), Chiara Balleello and Barbara Pellizzari (pencils and inks), and Alessandro Muscillo (color) ; translated by Emily Clement
- Thea Stilton and the tropical treasure, text by Thea Stilton ; illustrations by Barbara Pellizzari and Chiara Balleello (design), and Valeria Cairoli and Daniele Verzini (color) ; translated by Emily Clement
- Catching the giant wave, Thea Stilton
- Thea Stilton and the riddle of the ruins, a Geronimo Stilton adventure
- Thea Stilton and the journey to the lion's den, [text by Thea Stilton ; illustrations by Barbara Pellizzari and Daniele Verzini ; graphics by Chiara Cebraro ; translated by Emily Clement]
- Stilton, Thea, Mouseford Academy
- Thea Stilton and the treasure seekers, Geronimo Stilton ; [text by Thea Stilton ; translated by Julia Heim]
- The magic of the mirror, Thea Stilton ; illustrations by Giuseppe Facciotto, Barbara Pellizzari, Chiara Balleello, Valeria Brambilla, and Alessandro Muscillo ; translated by Anna Pizzelli
- Thea Stilton and the Roman holiday, Thea Stilton ; illustrations by Valeria Brambilla, Barbara Pellizzari, Valeria Cairoli, Valentina Grassini, and Flavio Ferron ; translated by Julia Heim
- Thea Stilton and the American dream, Thea Stilton ; illustrations by Barbara Pellizzari, Flavio Ferron, Giuseppe Facciotto, Chiara Balleello, Valeria Brambilla, [and 2 others] ; translated by Lidia Tramontozzi
- The phantom of the orchestra, Thea Stilton
- A Mouseford musical, Thea Stilton ; illustrations by Chiara Balleello and Francesco Castelli ; translated by Anna Pizzelli