When Artemis Fowl’s mother contracts a life-threatening illness, his world is turned upside down. The only hope for a cure lies in the brain fluid of the silky sifaka lemur. Unfortunately, the animal is extinct due to a heartless bargain Artemis himself made as a younger boy. Though the odds are stacked against him, Artemis is not willing to give up. With the help of his fairy friends, the young genius travels back in time to save the lemur and bring it back to the present. But to do so, Artemis will have to defeat a maniacal poacher, who has set his sights on new prey: Holly Short. The rules of time travel are far from simple, but to save his mother, Artemis will have to break them all…and outsmart his most cunning adversary yet: Artemis Fowl, age ten.

When the only way to save his mother's life lies with the lemurs he made extinct five years ago, Artemis turns to his fairy friends to take him back in time, where he tries to undo the damage while avoiding his dangerous younger self. Reprint.

Artemis has committed his entire fortune to a project he believes will save the planet and its inhabitants, both human and fairy. Can it be true? Has goodness taken hold of the world's greatest teenage criminal mastermind? Captain Holly Short is unconvinced, and discovers that Artemis is suffering from Atlantis Complex, a psychosis common among guilt-ridden fairies - not humans - and most likely triggered by Artemis's dabbling with fairy magic. Symptoms include obsessive-compulsive behavior, paranoia, multiple personality disorder and, in extreme cases, embarrassing professions of love to a certain feisty LEPrecon fairy

One week after their eleventh birthday, the Fowl twins--scientist Myles, and Beckett, the force of nature--are left in the care of house security (NANNI) for a single night. In that time they befriend a troll who has clawed his way through the earth's crust to the surface. Unfortunately for the troll, he is being chased by a nefarious nobleman and an interrogating nun, who both need the magical creature for their own gain, as well as a fairy-in-training who has been assigned to protect him. The boys and their new troll best friend escape and go on the run. Along the way they get shot at, kidnapped, buried, arrested, threatened, killed (temporarily), and discover that the strongest bond in the world is not the one forged by covalent electrons in adjacent atoms, but the one that exists between a pair of twins.

The Artemis Fowl Files is comprised of two original stories: "LEPrecon": the story of Fairy Police Captain Holly Short's move from Traffic to Recon following her initiation into the Fairy Police; and "The Seventh Dwarf", featuring Mulch, Butler, and Artemis himself.

Young Artemis has frequently used high-tech fairy magic to mastermind the most devious criminal activity of the new century. Now, at a conference in Iceland, Artemis has gathered the fairies to present his latest idea to save the world from global warming.

After his last run-in with the fairies, Artemis Fowl's mind was wiped of memories of the world below ground and any goodness grudgingly learned is now gone with the young genius reverting to his criminal lifestyle.