Artemis Fowl wants to find his father, held hostage in Russia. Holly Short wants to find who is supplying the goblins with human technology. Foaly wants to find out who has disabled all the LEP Technology and pointed the finger at him. Meanwhile, down in the underground world, chaos has arisen. An unknown traitor has stolen forbidden weapons and armed a horde of trolls, setting them loose to wreak havoc on the citizens. Clues lead Captain Holly Short...

At a boarding school in Switzerland, fourteen-year-old Alex Van Helsing learns that vampires are real, that he has a natural ability to sense them, and that an agency called the Polidorium has been helping his family fight them since 1821.

This year, best friends Sophie and Agatha are about to discover where all the lost children go: the fabled School for Good & Evil, where ordinary boys and girls are trained to be fairy tale heroes and villains. As the most beautiful girl in Gavaldon, Sophie has dreamed of being kidnapped into an enchanted world her whole life. With her pink dresses, glass slippers, and devotion to good deeds, she knows she'll earn top marks at the School for Good...