America's favorite baby-sitters are detectives, too!
Something odd is going on at the Kishis'. First Claudia's room is ransacked. Then she discovers some of her things missing. What would someone want with Claudia's old stuff?
Weird things have been happening with Claudia's sister Janine, too. Janine has been getting suspicious packages in the mail, and she even got caught lying to their parents!
Claudia doesn't know what's going on at her house. But things are going to change with the Baby-sitters on the case!
Click on any of the links above to see more books like this one.