The Stupid family celebrates the children's awful report cards by inviting their relatives to a costume party. "Everybody's pet crazies make a return appearance
In an attempt to avoid a visit from Uncle Carbuncle, the Stupids fly off in their airplane to visit several other relatives who are just as stupid as they are.
The Stupid family thinks they are dead when the lights go out. "Excellent pacing, concise, witty prose, and artwork perfectly suited to the text." -- School Lib