After being told that his father was an assassin for a criminal organization, fourteen-year-old Alex goes to Italy to find out more and becomes involved in a plan to kill thousands of English school children.

When Matt Freeman gets into trouble with the police, he's sent to be fostered in Yorkshire. It's not long before he senses there's something wrong with his guardian, and the entire village. Then Matt learns about the Old Ones and begins to understand just how he is different. But no one will believe him, and no one can help.

When the world's deadliest terrorist organization, Scorpia, stirs up trouble in the Middle East, it is up to fourteen-year-old MI6 agent Alex Rider to thwart their plans.

Alex, a fourteen-year-old spy, has been assigned by the British MI6 to investigate a series of mysterious deaths. He ends up in a boarding school in the Swiss Alps, and finds many strange things are happening to the students.

When thirteen-year-old Nick is framed for a jewel robbery, he and his brother, the bumbling detective Tim Diamond, attempt to clear his name by capturing the master criminal known as the Fence.

After his older brother, a fledgling private detective, agrees to safeguard a package for a dwarf who does not live long, thirteen-year-old Nick scampers to solve the mystery while also trying to stay one step ahead of an assortment of thugs.

Fourteen-year-old Nick and his bumbling detective brother Tim Diamond investigate a mystery involving international spies and assassins.

In London, England, twelve-year-old Joe discovers that his grandmother is not just physically repulsive and horribly mean, she is also involved in an evil plot against him, but the adults around them fail to see behind her mask.

After being expelled from school, thirteen-year-old David Eliot is sent to Groosham Grange, a spooky and sinister boarding school where nothing seems quite right.

When wealthy, spoiled, thirteen-year-old Tad Spencer wishes he were someone else, he awakens as Bob Snarby, the uncouth, impoverished son of carnival workers, and as he is drawn into a life of crime he begins to discover truths about himself and his family.