Artemis Fowl is fourteen, a teenage criminal mastermind, and he has never been more curious. When a mysterious fairy-world secret appears to be heading straight for him, he finds himself pulled into a puzzle that involves the lost colony of demons, who vanished into time thousands of years ago. To solve it, Artemis must work alongside LEPrecon officer Holly Short, his loyal bodyguard Butler, and a young demon warlock named Number 1. They soon discover they’re not the only ones searching. Minerva Paradizo, a brilliant young rival, is just as determined to uncover the truth, and she is not afraid to use dangerous allies to do it. With time running out and the safety of the fairy world in the balance, this fifth Artemis Fowl adventure delivers fast-paced action, sharp humor, and a clash of two young geniuses.