Kids on the case mystery
(Book)

School's out, sixth grade's over, and best friends Mary Ann Page and Kolleen Kelly are looking forward to the perfect summer job: baby-sitting. When they're each hired to look after a young boy, the girls are thrilled at the opportunity to spend the summer together, baby-sitting in the park. But their enthusiasm turns to apprehension when Kolleen notices a man in a van watching the boys as they play each day, especially Andy, the boy in her care. Even Devil May Care, Kolleen's dog, can sense that something's not right. Kolleen's worst fears come true the afternoon the strange man gets Andy into his van and races off. Kolleen and Mary Ann work feverishly on their own and with the police to figure out the identity of the strange man. But will they be in tie to help Andy? The kids are on the case!--Back cover.