The Five Find-Outers (1991–2003)
- The Mystery of the Invisible Thief (1991)
- The Mystery of Banshee Towers (1996)
- The Mystery of Tally-Ho Cottage (1996)
- The Mystery of the Vanished Prince (1996)
- The Mystery of the Missing Man (2003)
- The Mystery of the Pantomime Cat (2003)
- The Mystery of the Strange Bundle (2003)
- The Mystery of the Strange Messages (2003)