1. 01. English Non Fiction The Usborne book of secret codes / by O'Brien, Eileen. Publication: New York : | London, Eng., Scholastic ; | Usborne, 1997 . 32 p. : 25 cm. Date:1997 Availability: Copies available: (1), Actions:
2. 01. English Non Fiction Lu & Clancy's secret languages / by Dickson, Louise, Publication: Toronto : Kids Can Press, 2001 . 40 p. : 26 cm. Date:2001 Availability: Copies available: (1), Actions:
3. 01. English Non Fiction Lu & Clancy's secret codes / by Mason, Adrienne. Publication: Toronto : Kids Can Press, 1999 . 40 p. : 26 cm. Date:1999 Availability: Copies available: (1), Actions:
4. 01. English Non Fiction Secret agent Y.O.U. : the official guide to secret codes, disguises, surveillance and more / by Becker, Helaine, Publication: Toronto : Maple Tree Press, 2006 . 64 p. : , Includes index. 25 cm. Date:2006 Availability: Copies available: (1), Actions:
5. 02. English Fiction The 39 Clues: The medusa plot / by Korman, Gordon. Publication: New York : Scholastic, 2011 . 222 p. : 20 cm. Date:2011 Availability: Copies available: (1), Actions:
6. 02. English Fiction The 39 Clues: Cahills vs. Vespers The dead of night / by Lerangis, Peter. Publication: New York : Scholastic, 2012 . p. cm. Date:2012 Availability: Copies available: (2), Actions: