In alternating chapters, two teenagers describe how their feelings about themselves, each other, and their families have changed over the years.

When Nolan witnesses a serious crime, he realizes he may not be able to hide behind his Shredderman identity this time.

Sammy continues to make life with her grandmother interesting as she tries to discover who is stealing from St. Mary's church, befriends a homeles girl, and plays in a softball tournament against a bitter rival.

Fifth-grader Nolan Byrd, tired of being called names by the class bully, has a secret identity--Shredderman!

When cats begin to disappear in Santa Martina, thirteen-year-old friends Sammy and Holly start snooping around town to find out what is happening.

When her history teacher begins receiving death threats and her own name is near the top of the suspect list, eighth-grader Sammy is determined to find the real perpetrator, but she is distracted by her mother's relationship problems, her almost-boyfriend inexplicably avoiding her, and her duties as a reluctant bridesmaid.

Someone is spray-painting graffiti all over Cedar Valley and it is up to fifth-grader Nolan Byrd, also known as Shredderman, to expose the vandal.

While on her first hiking and camping trip, thirteen-year-old Sammy tries to solve a mystery involving endangered condors while avoiding scorpions, ticks, and embarrassment.

After reading her mother's secret collection of romance novels during her parent's difficult separation, seventeen-year-old Evangeline Logan begins a quest for the perfect kiss.

"Sammy Keyes has spent the last few years solving other people's mysteries; now her friends (and some foes) come together to unmask the fiend who has put Sammy in a coma"--