Hi,
Because I like the 1001 Nights I let my players end up in Araby. Problem is, as far as I know there isn't an official source were this is described. (links please, if i'm wrong) . Because I have a scientific layman interest in Islamic religion/mythology I wanted to include some of this in the campaign setting.
So I came up with the following:
Arabic Religion
The main religion in Araby is comprised of the worship of nature and elemental spirits. But since a few decades there's an upcoming religion. Land inward to the South East there's a congragation of Arabians an Touareg Tribes led by 'Salamed The Allseer" (yes, a combination of Mohammed and Saladin). Salamed is spoken to by the presumed dead god Ptrah. Ptrah survived the onslaught of Nagash by absorbing the essences of the other gods. Having learned from his past mistakes Ptrah chose to have a more distant relation with mortals, having only one mortal emissary, Salamed. Because of his divine guidance as well as his excellence as a mortal (advanced career witch I haven't fleshed out yet) Salamed and his huge army of Desert Warriors/devotees is gaining ground and influence rapidly. Posing a clear and present threat to the decadent ruling classes (merchant houses an Pasha's) of the great Arabian Cities.
I also came up with the following theory about possession in the warhammer multiverse.
Every god is able to possess a worthy follower. Depending on the morals of the specific god each has a specific stance.
The Ruinous Powers: because of possession is part in the trade for the soul the big four are fond of possessing in a similar way of the old Ushabti; as in anyone worthy enough. I like to include the fact from Mordheim (altough thousand years ago) that any Cultist warband has 1 or 2 possessed. The deovtee doesn't have to agree to get possessed.
The Good Gods: the free will of mortals is the most cherished by the Gods of Men, Dwarves and Elves. From the free choice to do good and devote themselves to the good gods comes good in the world of Warhammer. The negative effect is that corruption by the Ruinous Powers within the cults of Sigmar and the likes is possible. Only under dire circumstances (Apokalypse/Gotterdammerung-like situations) will a good god possess a devotee (as in sacrifice one hero to save the world) and only if the devotee agrees. As far as I know this has never happened.
I'm very interested in the opinions of fellow gamemasters on my brain-fart :-)