01490cam a2200397 4500 430971695 TxAuBib 20200101120000.0 990122s1999||||||||||||||||||||||||eng|u cn 999303120 9781550745535 1550745530 (OCoLC)40813852 CaOTU eng NLC MUS PNX CoLwJCPL TxAuBib Mason, Adrienne. Lu & Clancy's secret codes / written by Adrienne Mason ; illustrated by Pat Cupples. Secret codes. Buffalo, N.Y. : Kids Can Press, 1999. 40 p. : col. ill. ; 26 cm. Lu & Clancy. "Lu & Clancy, an activity storybook"--Cover. Dog detectives Lu and Clancy show more than 20 ways to send a secret, fool-proof code. Includes a story about Lu's missing sister. Ages 7-10. 20200101. Cryptography Juvenile literature. Cryptography. Ciphers Juvenile literature. Ciphers. Lu (Fictitious character : Kids Can Press) Juvenile literature. Lu (Fictitious character : Kids Can Press.) Clancy (Fictitious character : Kids Can Press) Juvenile literature. Clancy (Fictitious character : Kids Can Press.) Nonfiction. Cupples, Pat. Lu & Clancy.