The underground world of the fairies again confronts the evil genius of the nefarious pixie, Opal Koboi. Captain Holly Short of the LEPrecon (Lower Elements Police) needs the help of young mastermind Artemis Fowl to save both humans and fairies. But Artemis has been mind-wiped and has no recollection of his previous adventures with the LEP. Nathaniel Parker strides confidently into the worlds of fantasy and technology that unite humans and fairies. He unerringly re-creates the many voices from the first three installments, and his appropriately hurried pacing takes the listener from one breathless calamity to another. Parker's stereotyped Asian accent becomes a bit annoying, but this is a small complaint in an otherwise welcome revival of Colfer's panoply of characters.