My Grandmother the PI
by Carol W. Hazelwood
Seventeen-year-old Mandy Winthrop has been raised by her grandmother Fran, who runs a private detective business. Mandy, wise beyond her years but way too nosey, gets herself and her friends, Rita, interested in cosmetology, and Charlie, a computer wiz, into trouble. While acting as her grandmother's secretary for the summer, Mandy stumbles upon a child kidnapping scheme. Although she finds out the truth about her parents, her snooping puts her friends and her grandmother in danger.