When a school bus accident leaves sixteen-year-old Jessica an amputee, she returns to school with a prosthetic limb and her track team finds a wonderful way to help rekindle her dream of running again.

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

Nolan Byrd, alias Shredderman, sets out to help the young star of his favorite television show expose a slanderous reporter.

While celebrating the New Year with a friend, Sammy encounters a mystery involving an elderly neighbor, a pioneer cabin, and a century-old family feud.

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.

Sammy Keyes and her friends take a detour through a graveyard on Halloween night and find themselves in the middle of a mystery involving missing people, human skulls, and a ghoulish embalmer, while school presents its own set of tricks and treats.

Seventh-grader Dave Sanchez and his talking gecko sidekick Sticky decide they must rescue an odious science teacher who has been kidnapped by the even more villanous Damien Black, who is masquerading as a substitute teacher in order to steal Dave's magic Aztec armband.

When thirteen-year-old Sammy finds herself with an abandoned baby on her hands, she sets out to find the young mother, who may belong to a gang, and accidentally jeopardizes her position on the softball team.

On Halloween night, seventh grader Sammy stumbles onto a mystery involving a twenty-year-old family feud and some heirlooms stolen by a man in a skeleton costume.

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