As Hava sails across the sea toward Monsea with the world's only copies of the formulas for the zilfium weapon, she makes an unexpected discovery about one of the ship's crew, but before she can unravel the mystery, storms drive their ship off course, wrecking them in the ice far north of the Royal Continent.

Whisked through a portal to The Outskirts, an in-between world, sixth-grader Cole must rescue his friends and find his way back home--before his existence is forgotten.

Opal Koboi, power-crazed pixie, is plotting to exterminate mankind and become fairy queen. If she succeeds, the spirits of long-dead fairy warriors will rise from the earth, inhabit the nearest available bodies and wreak mass destruction. But what happens if those nearest bodies include crows, or deer, or badgers -- or two curious little boys by the names of Myles and Beckett Fowl? Yes, it's true. Criminal mastermind Artemis Fowl's four-year-old brothers...