Abomination

Malicious spirits, known as demons desire the world beyond the Fade and as such, they often try to possess whatever they can from beyond the Fade, with varying results. An abomination is such a result, the result of a demon possessing a living human or elf. Mages are those who are most commonly unfortunate enough to be possessed and turned into abominations, because of the fact that mages draw their magic from the Fade as well as because of the Harrowing every mage is put through. While it is theoretically possible to free someone who has been possessed, it has never been done, mostly because an abomination is incredibly dangerous.