Cam Jansen and the Chocolate Fudge Mystery

Knock, knock.

Cam and Eric never expected to find a mystery while selling candy door-to-door for their school fundraiser-but that's exactly what they find.  When Cam notices that there is a full trash can outside of a house that is supposed to be deserted, she suspects that there's someone hiding inside.  Cam doesn't know how is in the house, but she's going to find out!