The Fairy People have wiped all knowledge of their world from the brain of the only human they’re scared of: Criminal genius Artemis Fowl. But how they need him – and fast. Evil pixie Opal Koboi is planning world destruction. Stopping her will involve clearing Captain Holly Short’s name of murder, springing a kleptomaniac dwarf from jail and convincing a super-intelligent centaur that he doesn’t know it all. If only Artemis could remember why all these strange creatures are depending on him…. The Opal Deception (Artemis Fowl) by Eoin Colfer.