One of Our Elephants Is Missing is the 13th episode of Clue Club.
Summary[]
The Clue Club go to the zoo to search for a missing elephant, among other animals. D.D.'s idea of disguising as a chimpanzee to stake out the thief doesn't work. At the docks, Chris Carloff and his accomplice, Dr. Henkan, are proved to be the thieves who smuggled the zoo animals.