Cam Jansen trys to solve another mystery when she discovers a trash can in front of a house that is supposed to be empty while selling candy with Eric for the school fundraiser.
Cam Jansen sets out to solve the mystery of Danny's parents' missing car before the famous mystery writer Jim E. Winter, who is signing books at the school, does.
On Green Day, Cam and her classmates discuss ways to protect the environment, but when money collected for the school's new skylights disappears, Cam uses her photographic memory to solve the mystery.