This is the last book in the Atemis Fowl series it was fantastic in the begining of the book Artemis is being realeased from the J. Argon institution fully recovered from Atlantis complex. He discovers that opal Koboi from the past is being held ransom for the release of present day Opal Koboi or they shoot her causing explosions of any electronics made by her But, this is Opal's plan This gets rid of most fairy and human technology and Opal Koboi from the past in a few mere seonds. When Artemis realizes Opal was being held ransom in the Fowl Manor and that Opal Koboi plans to end hummanity artemis rushes to the fowl manor he finds Opal Koboi trying to rid the world of humans with the help of dead warriors that have possesed any living thing on the property including Artemis' brothers can Artemis save humanity?