Plague Halls of Mogdana

The Mentor Kiv believed to have dead and gone to the great Plague Halls of Mogdana, after the brain transfer experiments of the scientist Crozier. The Krontep Yrcanos believed the experiment to have been conceived in such Halls. (TV: Mindwarp)

Behind the scenes
It is implied the Halls of Mogdana are an afterlife and/or a hell believed to exist at least by the Mentors and the Kronteps.