The case of the clue at the zoo /
by Judy Katschke.
- New York, N.Y. : HarperEntertainment, c2004.
- 80 p. : ill. ; 20 cm.
- The new adventures of Mary-Kate & Ashley .
"A Parachute Press book." Includes preview of the next book in the series, The case of the Easter egg race (p. [82-85]).
The day before a panda arrives at the zoo from China, the other animals start acting funny. Mary-Kate and Ashley plan to find out what's behind all the monkey business at the zoo.