The famous Artemis Fowl finally found his match: Minerva Parandizo, young, beautiful, genius, unique, is determined to capture a fairy to study it. And not just any fairy, but a bloodthirsty demon from the beyond!

Meanwhile, the mysterious Department Eight of the Y.C.I. requests the help of policewoman Holly Short, while a ruthless murderer, Billy Kong, seeks revenge. Only a spell separates the world of demons from that of humans. Artemis is called upon to protect it, or else humanity is in danger...

There will only be one winner. And perhaps this time, not Artemis Fowl...