- Thea Stilton and the chocolate sabotage, [text by Thea Stilton ; illustrations by Chiara Balleello (design) and Daniele Verzini (color) ; graphics by Chiara Cebraro ; translated by Emily Clement ; based on an original idea by Elisabetta Dami]
- Thea Stilton and the Madagascar madness, text by Thea Stilton ; illustrations by Barbara Pellizzari and Chiara Balleello (design), Valerie Cairoli (color base), and Valentina Grassini (color) ; translated by Emily Clement
- The mysterious love letter, Thea Stilton ; Illustrations by Chiara Balleello and Francesco Castelli ; Translated by Anna Pizzelli, v. 9
- The phantom of the orchestra, Thea Stilton
- A Mouseford musical, Thea Stilton ; illustrations by Chiara Balleello and Francesco Castelli ; translated by Anna Pizzelli
- Thea Stilton and the frozen fiasco, by Thea Stilton ; illustrations by Barbara Pellizzari and Chiara Balleello ; translated by Emily Clement
- The treasure of the sea, Geronimo Stilton, Thea Stilton ; [Illustrations by Chiara Balleello and Barbara Pellizzari (design); Alessandro Muscillo]
- 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 race for the gold, Thea Stilton
- 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 cloud castle, Thea Stilton ; illustrations by Danilo Barozzi, Chiara Balleello, and Barbara Pellizzari (design), and Alessandro Muscillo (color) ; translated by Emily Clement