Cam Jansen and the Mystery at the Monkey House (Cam Jansen, 10)

Cam Jansen and her friend Eric are set for a fun day at the zoo. Once there, they meet Eric's friend Billy and go visit the noisy monkey house. It's fun to see the little monkey who copies everything Eric does. But it's not fun when a little later the monkeys are missing. The cage was full of monkeys and now it's almost empty. Who would steal monkeys from their locked cages? Whoever it is had better watch out. Click Click. Cam Jansen and her photographic memory are on the case.