[quote=Imperfectionist]
More like spirits than ghosts, in that they exist separate from humans, have their own souls/free will, and aren't simply imprints of the dead. :) They're very interesting. Also, of course, in Islam some of them play the role of "demons". Seeing as they have free will, just like us, some powerful, arrogant jinn have chosen to scorn Allah and lead mortals away from salvation, to their doom...EDIT: There's no way for angels to rebel, as angels by definition have no free will, so the Corrupter-of-humanity figure is the first Jinn (the "Adam/Lilith" of Jinn), who grew arrogant, and turned away from the Creator.
[/quote]

Hah, alright. I was close then. I know more about Islam than the average person, but I'm not Muslim so I'd be lying if I said I was a complete expert. However, from my understanding there was also Pre-Islamic Jinn myths.