Thea Stilton and the Secret of the Old Castle by Thea Stilton
When the Thea Sisters' good friend, Bridget, has to return to Scotland to help her family repair their ancient castle, the five mice offer to help their friend in whatever way they can. Little do they know that Bridget will be kidnapped, and they'll have to rush to Scotland to help find her. Full color.
| Books: Teen fiction |
| Age Wise: 8+ years |