When Artemis learns that his father has been kidnapped by the Russian mob, he races to the Arctic Circle to make a daring rescue, where he finds an old acquaintance, Captain Holly Short, who is investigating a plot of the goblin mob.

Criminal mastermind Artemis Fowl has no memory of the fairy people and his dangerous enemy, Opal Koboi escapes from jail and is planning revenge.

Artemis's mother has contracted a deadly disease -- and the only cure lies in the brain fluid of African lemurs. Unfortunately, Artemis himself was responsible for making the lemurs extinct five years ago. Now he must enlist the aid of his fairy friends to travel back in time and save them. Not only that, but he must face his deadliest foe yet...his younger self.

"Teenage genius Artemis Fowl and his arch rival Opal battle to the last in this eighth and final book in series"--