A mysterious person has been hurting students at Sea City High School and the only clue is that each of the victims receives a doll before the person strikes. Can the Pep Squad Mystery Club catch the person now that one of the cheerleaders has received THE DEADLY DOLL? PEP SQUAD MYSTERIES is a series of mystery chapter book adventures aimed at readers 9 years and up. Each book features easy-to-read mystery-thriller stories with black and white illustrations.