Artemis Fowl and the Last Guardian

"The explosive, emotional, incredible final book in the Artemis Fowl series. IS THIS THE END FOR ARTEMIS FOWL? Opal Koboi is back, and up to no good. A bit of world-domination here, a little light annihilation there. Some power-crazed pixies never change. But now Opal plans to wake the spirits of some very deadly, and very angry, long-dead fairy warriors, before releasing an ancient spell to wipe out all human life. Artemis, Butler, Holly and Mulch must make a final stand against Opal and the end of the world. But who will be willing to make the ultimate sacrifice to save humanity?"