April Fool's DayPaperback, 10 March 2009

Nancy, George, and Bess have been invited to an April Fool's Day party at their new schoolmate's house. It sounds like it's going to be a lot of fun -- each guest is bringing a gag to the party, and the best prank will win a special prize. When two of the guests' fancy new electronics go missing, Nancy knows something's up. Is this someone's idea of a joke? The Clue Crew certainly isn't laughing, and they're on the case to find the missing gadgets.