Author: Eoin Colfer
The pitch: 12-year-old boy, Artemis Fowl II, is an extremely intelligent and ruthless young criminal mastermind, who pursues riches through a variety of illegal schemes.
Believing he has confirmed the existence of fairies, Artemis gains possession of the Fairy Holy Book, which he plans to use to capture the vast reserves of fairy gold.
The pedigree: The author describes the series as "Die Hard with fairies".
The books have dominated bestseller lists across the world and have garnered several awards.
Books in series: Six.
Web presence: 116,000 Google hits.
Big-screen potential: Jim Sheridan, director of In America, was supposedly developing a script in 2008, but the project appears to be on hold.
Next: Power Of Five