No case is too tricky for the world's most famous sleuth and his incredible powers of deduction, in a collection of mystery stories for young readers.

Thirteen-year-olds Bertie Bradshaw of London and American Eleanor Shea team up to decipher a coded notebook and stop a double agent from revealing secrets about the upcoming D-Day invasion.

"When the creator of a high school gossip app mysteriously dies in front of four high-profile students, all four become suspects. It's up to them to solve the case"--

Nate and his dog Sludge help Rosamond discover who has been tearing pages out of her books.

In 1868, twelve-year-old Emma and her widowed mother move to a tiny mining town in Colorado Territory to start a newspaper, but someone is determined to scare them away.

A SEARCH FOR A MISSING HORSE LEADS NANCY TO A DARK DISCOVERY! Nancy's attending the Midwest Grand Prix Dressage Championships, where many of the world's best riders and finest horses compete. But more than blue ribbons is at stake. As Nancy quickly learns, these horses generate big money, turning a friendly competition into a very nasty business. Discovering a fire in the stables, Nancy barely averts a terrible tragedy. But now she faces a new danger:...

In 1970s San Francisco, Julie and her best friend Ivy learn about Chinese immigration in the early twentieth century when they investigate a mysterious doll theft.

"An African-American teen in the Witness Protection Program moves to a new town and finds himself trying to solve a murder mystery when his first friend is found dead"--

Bradley, Brian, Nate, and Lucy follow clues to find whoever left a rabbit in their first-grade classroom on Valentine's Day, because they are worried the rabbit will get sick and die of loneliness.