Fourteen-year-old Alex continues his work as a spy for the British MI6, investigating an exclusive school for boys in the French Alps.

Thirteen-year-old Bethany's parents have always been overprotective, but when they suddenly drop out of sight with no explanation, leaving her with an aunt she never knew existed, Bethany uncovers shocking secrets that make her question everything she thought she knew about herself and her family.

Seventeen-year-old Laz Hayerian wakes up on an abandoned Earth to discover that he and his companion Ivy Downey are clones, and they must work together--combining their talents to sense and step into and out of timestreams--to save humanity from imminent extinction.

In 2137, fourteen-year-old Matt is stunned to learn that, as the clone of El Patrón, he is expected to take over as leader of the corrupt drug empire of Opium, where there is also a hidden cure for the ecological devastation faced by the rest of the world.

In a book that invites readers to start at either end or alternate between perspectives, Lyra and Gemma get the chance to escape from the protective environments in which they were raised while uncovering secrets about the bioresearch facility that connects them.

Although she seems to live a happy, normal life, sixteen-year-old Teva clones herself every year due to a genetic abnormality.

Jack is a walking fossil. The only human among a sea of clones. It's been hundreds of years since humanity died off in the slow plague, leaving the clones behind to carry on human existence. Over time they've perfected their genes, moving further away from the imperfections of humanity. But if they really are perfect, why did they create Jack? While Jack longs for acceptance, Althea-310 struggles with the feeling that she's different from her sisters....

Dahlia thinks all of her clones have been destroyed, but then discovers that one still exists--Waverly Whitmore, who is teenage royalty, a media sensation with millions of fans--who has no idea that she is a clone.