Fifteen-year-old MI6 agent Alex Rider travels around the world on a dangerous mission to destroy the deadly terrorist organization, Scorpia, once and for all.

Colton, Daphne, and the others must choose between those striving to take down the world's clock towers so that time can run freely, and terrorists trying to bring back the lost god of time.

In an alternate Victorian world controlled by clock towers, where a damaged clock can fracture time--and a destroyed one can stop it completely, eighteen-year-old mechanic Danny investigates fallen clock towers in British-occupied India and unravels more secrets about his and Colton's past.

Thirteen-year-old Q and fifteen-year-old Angela expect their lives to become complicated when his mother and her father, wildly popular musicians, marry, but not that they will face spies and terrorists in Philadelphia, Pennsylvania.

When the peaceful alien-run government decides to simply withdraw from Earth, it seems that the terrorist group Sapience is going to get the free Earth it wanted; but Donovan Reyes, member of the security forces, and once a prisoner of Sapience, realizes that freedom comes with a price--other alien races want to strip the planet of its resources, and if anyone is going to survive, what is left of the security forces and Sapience have to work together....

In a near-future America, a sentient computer program named Charlotte has turned terrorist, but Lee Fisher, the closeted son of an ultraconservative President, is more concerned with keeping his Secret Service detail from finding out about his developing romance with Nico, the new guy at school, but when the spider-like robots that roam the school halls begin acting even stranger than usual, Lee realizes he is Charlotte's next target.

Cammie Morgan and her friends finally know why the terrorist organization called the Circle of Cavan has been hunting her. Now the spy girls and Zach must track down the Circle's elite members to stop them before they implement a master plan that will change Cammie--and her country--forever--

Michael is a skilled internet gamer in a world of advanced technology. When a cyber-terrorist begins to threaten players, Michael is called upon to seek him and his secrets out--

After the death of the uncle who had been his guardian, fourteen-year-old Alex Rider is coerced to continue his uncle's dangerous work for Britain's intelligence agency, MI6.