Opal Koboi
Opal Koboi is a fictional character from the Artemis Fowl series by Eoin Colfer. After the character's introduction in the second book in the series as a supporting antagonist, Colfer again used Koboi as the main antagonist of the fourth, sixth, and eighth books in the series, giving her the status of archenemy to Artemis Fowl II.
Introduction
Colfer first brought the Opal Koboi character into the Artemis Fowl series through the May 2002 publication of Artemis Fowl: The Arctic Incident. Koboi was written in this second book of the series as an evil genius responsible for the highest level of planning and execution of a war by goblins using outlawed lethal lasers against the Lower Elements Police Reconnaissance (LEPrecon) police squad, shutting off all the LEP's power and blaming her only scientific rival Foaly for the entire affair. She employs Lieutenant Briar Cudgeon, a LEPrecon officer who was disgraced in the prequel, as her partner in her attempt to stage this coup deep in the bowels of the Earth. However, at the climax of the book, Artemis reveals that Cudgeon plans to betray Koboi. Koboi flies into a rage and attacks Cudgeon. In the ensuing struggle, Cudgeon is electorcuted to death by falling into live plasma tubes and Koboi is incapacitated. She then falls into a self-induced coma as part of a plan to escape imprisonment.