Khas
From Jenny Everywhere Wiki
Khas was a magical entity of unknown nature imprisoned inside the Necklace of Khas, one of the many artefacts which ended up in the possession of the Chosen. The Chosen could unleash Khas to help him fight his opponents, but would then have to spend valuable time coaxing the entity back into the Necklace. (GAME: The Jenny Everywhere Roleplaying Game)
Behind the scenes
Khas's exact nature, gender, abilities or even appearance are not described in the Jenny Everywhere Roleplaying Game sourcebook.