Fifteen year-old Bianca Balducci attends parochial school, worries about her clothes, her would-be boyfriend Doug...and solving real-life mysteries. The case in this humorous book revolves around Sadie Sinclair, the new girl Bianca has discovered is more than a little odd, and who is hiding something really BIG.

As David enters his senior year of high school, a family secret emerges that could solve the mystery of why his mother was murdered two years ago.

When one of their tightly-knit group mysteriously disappears, four high school girls find their friendship difficult to maintain when they begin receiving taunting messages from someone who seems to know everything about their past and present secrets.

Fourteen-year-old Nikki has trouble accepting her new stepmother Crystal, and the problem grows worse when they visit the Northern California house where Crystal lived as a child and experienced some horrible event that she is trying to keep secret.

When her grandmother decides to ditch assisted living and start a boarding house, fourteen-year-old Amanda Jane Keeling, or Rebel, signs on for the work crew, where she just happens to meet a teenaged boy taller than she is and to embroil them both in a mystery.

No one believes an eleven-year-old Joey, who has a reputation for telling tall tales, when he claims to have witnessed the kidnapping of the class bully outside their expensive New York City private school.

At the age of fifteen, a girl who has spent most of her life moving around the country with her father and brother, filling the emptiness inside her with chocolate, remembers her real name, Sherica, and searches the Internet to learn the truth about her mother and her own past.

Twelve-year-old Nettie's sheltered and privileged life changes after her beloved tutor mysteriously disappears and Nettie, aided by the son of a household employee, begins to learn the truth about her father, whose wealth began with trafficking in illegal aliens.

Torn apart by tragedies and the publicity they brought, siblings Smithy, Jack, and Madison, aged fourteen to sixteen, tap into their parent's courage to pull together and protect their brother Tris, nearly three, from further media exploitation and a much more sinister threat.

When people start vanishing from a desolate trailer park next to the Folsom Energy Plant, friends Lady Di Smith and Tom Jones investigate, using mathematical clues that were hastily planted by their friend Mrs. Clarke before she disappeared.