Thea Stilton and the dragon's code /
[illustrations by Fabio Bono ... [et al.]].
- New York : Scholastic, c2009.
- 158 p. : col. ill., col. maps ; 20 cm.
- Geronimo Stilton .
- Geronimo Stilton. .
Translation of: Il codice del drago.
Thea, Geronimo's sister, is invited to a college on Mouse Island to teach a journalism class, and when a student disappears, Thea and five of her students go on an adventure to solve the mystery.