Kelli

"I would hate to see your handsome head on a spike if you fail."

- Kelli to Luke Castellan

Kelli is a major antagonist in The Battle of the Labyrinth, the fourth book in the Percy Jackson series, as well as a minor antagonist in The House of Hades. Kelli is an empousa who works for Kronos.

The Battle of the Labyrinth
Kelli, along with fellow empousa Tammi, went to Goode High School disguised as cheerleaders in order to find and kill Percy Jackson. Percy was able to kill Tammi, but Kelli escapes and sets the school on fire. The school staff believes Percy was the one who did so.

Throughout the book, Kelli appears in Percy's dreams. She serves as a right-hand-woman for Luke Castellan, giving him advice and helping him negotiate with other monsters. She demonstrates an ability to sense Percy watching them.

Kelli goes with Luke to Daedalus' workshop, attempting to kill Percy once again. Kelli pins Percy down, but is killed by Annabeth.

The House of Hades
Kelli appears with a group of other empousai, going through Tartarus to find the Doors of Death. Kelli and her comrades encounter Percy and Annabeth, who they desire to kill. The demigods are saved by Bob the Titan, who kills Kelli and the other empousai.

trivia

 * It is stated that the vampire legend was based on the empousai.


 * Kelli is implied to have a crush on Luke.


 * Kelli is a senior empousa, meaning she is faster and harder to kill.