When his baby sister disappears from the river near their summer home, eighth grader Chris fights the assumption that she has drowned and uncovers evidence that something entirely different has happened to her.
Tracy, a high school junior, becomes embroiled in the problems of a strange boy, who asks her assistance in "snatching" his half-sister from her father who has allegedly kidnapped her.
When Ms. Information kidnaps the President's daughter, it is up to twelve-year-old Ruby, also known as Pufferfish, to use her super-nanobyte-enhanced allergies in leading the NERDS' investigation.
Thirteen-year-old Bonnie has a feeling of foreboding on the very day that her six-year-old brother Matt and their dog Pookie are abducted, and she becomes involved in a major search effort as well as a frightening adventure.
Archie Wiggins and a few of his friends investigate the disappearance of the famous detective Sherlock Holmes after Archie was kicked out of the Baker Street Irregulars, a gang that often assisted Holmes.
Thirteen-year-old criminal mastermind Artemis Fowl must join forces with his nemesis, Captain Holly Short of the LEPrecon fairy police, in order to save his father--one of the few people in the world Artemis loves--who has been kidnapped by the Russian Mafiya.
A series of burglaries in their quiet community upsets Alex's family, particularly his younger brother Benjie, but the bad guys are no match for the very protective family cat and Benjie's "spy" skills.
