In this third installment to Eoin Colfer's funny, fast-paced, fairy-filled adventure series, boy genius and arch criminal Artemis Fowl once again can't resist plotting the perfect crime--and, once again, he can't keep from stirring up so much trouble that the fate of the entire fairy world teeters in the balance. The once hard-boiled Artemis has softened a bit between his bestselling debut and the seat-of-your-pants Arctic Incident, and that trend continues in The Eternity Code: He's still plotting for a billion-dollar-plus payoff for the Fowl family, but now his enemies are human (chiefly Jon Spiro, a ruthless businessman Artemis tries to blackmail using stolen fairy technology) and he has to turn to his old adversary-turned-friend Captain Holly Short and cutpurse dwarf Mulch Diggums for help. The dialogue and action prove as smart and page-turning as ever this time around, with Artemis struggling to bring his faithful bodyguard Butler back from the dead before racing Mission Impossible-style to triple-cross the double-crossing Spiro. Colfer's young antihero might be getting more likeable all the time, but that hasn't taken the edge off the Tom-Clancy-meets-Harry-Potter action. Artemis has to agree to a memory-erasing "mind wipe" from the People after helping them recover their technology, but only a foolish fan would count Artemis out after this blockbuster "final heist." Book four can't come soon enough.... (Ages 9 to 12) --Paul Hughes