Teenage detectives Frank and Joe Hardy investigate a case of counterfeiting.

Tyler Yu, school bully, is convinced that there is a ghost stealing things at Abracadabra Hotel, and he enlists the help of Charlie Hitchcock to solve the mystery.

Thirteen-year-old Dan Cahill and his older sister, Amy, thought the search for the thirty-nine clues leading to the source of their family's power was over, but when Cahills are kidnapped by the Vespers, Amy and Dan find themselves with only a few days to fulfill a bizarre ransom request before their friends start dying.

"When Enola Holmes, sister to the detective Sherlock Holmes, discovers her mother has disappeared, she quickly embarks on a journey to London in search of her. But nothing can prepare her for what awaits. Because when she arrives, she finds herself involved in the kidnapping of a young marquess, fleeing murderous villains, and trying to elude her shrewd older brothers - all while attempting to piece together clues to her mother's strange disappearance....

Stevenson's shocking thriller explores the battle between good and evil within ourselves.

Washed ashore as a baby in tiny Tupelo Landing, North Carolina, Mo LoBeau, now eleven, and her best friend Dale turn detective when the amnesiac Colonel, owner of a caf�e and co-parent of Mo with his cook, Miss Lana, seems implicated in a murder.

Nancy Drew arrives in Phoenix, Arizona, eagerly looking forward to a fun-filled vacation at Shadow Ranch, but abruptly finds herself involved in a baffling mystery. The ranch is being haunted by an unknown enemy. Local people believe that the ghostly animal is carrying out the curse of Dirk Valentine, the romantic outlaw who was killed many years ago at Shadow Ranch, where he had gone to fulfill a promise to his sweetheart. Aided by her friends Bess...

While living on a moon base with fellow lunarnauts, Dashiell Gibson investigates the murder of one of the moon's most prominent doctors.

Pursued by her much older brother, famed detective Sherlock Holmes, fourteen-year-old Enola, disguised and using false names, attempts to solve the kidnapping of a baronet's sixteen-year-old daughter in nineteenth-century London. Enola Holmes, much younger sister of detective Sherlock Holmes, must travel to London in disguise to unravel the disappearance of her missing mother.