The book begins with the pixie Opal Koboi faking a coma inside an asylum to avoid incarceration by the Lower
Elements Police (LEP) after her failed rebellion and attempt at world domination (which took place in Artemis Fowl:
The Arctic Incident).
Opal Koboi, who was under 24-hour surveillance and had DNA tests done every 4 hours by the LEP to ensure that
Opal was actually in the asylum cell, with help from the Brill Brothers manages to replace herself with a clone, which
is identical to herself (the only difference being that the clone is brain dead).
Opal Koboi lures Commander Julius Root and Captain Holly Short into a building alone. She (Koboi) then kills
Commander of the LEP (framing Captain Holly Short as the murderer), and launches a bio-bomb at Artemis Fowl II,
which fails to kill him and his bodyguard Domovoi Butler.
Opal Koboi then proceeds with her plan to help Italian environmentalist Giovanni Zito send a probe downward, which,
at least in Koboi's plan, will cause the humans to find the fairies and start an inter-species war, leading to fairy
Artemis Fowl II was mindwiped in the third book of the series, The Eternity Code and has no memory of meeting the
fairies. This has also caused him to revert back to his former self- the one cruel enough to kidnap a fairy. But he has a
conscience, the difference is he choose not to listen to it.
Artemis is rescued from the scene of the bio-bomb attack by Holly. She tells him who she is, in hopes to ignite his
memory. He does not regain his memories of the past adventures, but agrees to help her for a fee. They are then
recaptured by Koboi and thrown into a troll-infested abandoned fairy theme park known as the Eleven Wonders of the
Human World (containing scale-models not only of the Seven Wonders of the Ancient World but also the additions of
Abu Simbel, Borobodur, Rapa Nui and the Throne Hall at Persepolis). After a desperate battle against the troll hordes
on a model of the Temple of Artemis at Ephesus, they are rescued by former crimin