Artemis Fowl - The Atlantis Complex

What's wrong with Artemis? The elf Holly no longer recognizes the legendary master thief. The usually clever Artemis is suffering from a strange illness. He has suddenly become superstitious and obsessively fixated on the number five. Additionally, he has fallen madly in love with Holly and seizes every opportunity to confess his feelings to her, driving her to madness. But it gets worse: a mysterious evil force is attacking the underground city of Atlantis. And no one notices the danger. If Holly doesn't act, she, Artemis, and all the residents of Atlantis will die. About the series: Artemis Fowl is a series of novels by Irish author Eoin Colfer, categorized in the fantasy/science fiction genre. Eoin Colfer tells the life story of the highly intelligent boy Artemis Fowl, who repeatedly confronts the so-called Earth people in the course of his schemes.