Books like The Last Guardian

Artemis Fowl and the Last Guardian, known in America as Artemis Fowl: The Last Guardian is the eighth novel in Eoin Colfer's Artemis Fowl series. Colfer had previously alluded to the novel being the final entry when he stated that the previous book, The Atlantis Complex, was the penultimate in the series. The Last Guardian was released 10 July 2012 by Viking Press and Disney Hyperion. The novel received generally positive reviews, winning the award for the 2012 Senior Irish Children's Book of the Year.

Just as Artemis leaves his final session of therapy for Atlantis Complex, he and Butler are summoned by Holly to the office of Commander Trouble Kelp, where they witness the next plan of Opal Koboi; she has two of her underlings kill her past self, who had survived the Kraken blast in The Time Paradox. Her past self's death creates a paradox, causing Opal's creations from the past five years to violently explode. To prevent the destruction of Atlantis, Opal's prison, the Fairies place Opal in the containment chamber of a nuclear reactor. The blast destroys most Fairy technology, which Koboi labs had controlled or created, and human technology, since black market Koboi chips had been used in their development and construction.