After Artemis uses stolen fairy technology to create a powerful microcomputer and it is snatched by a dangerous American businessman, Artemis, Juliet, Mulch, and the fairies join forces to try to retrieve it.
Eoin Colfer (pronounced "Owen") is an Irish author of children's books. He worked as a primary school teacher before he became a full-time writer. He is best known for being the author of the Artemis Fowl series.
([source][1])
[1]: https://en.wikipedia.org/wiki/Eoin_Colfer