I can tell you that djinn are not mentioned in any of the Torah's books. Maybe they are mentioned in the haftarah, but I don't think so.
However, they are mentioned in the Qur'an, though I'm not sure how much. Actually, there is an entire website devoted to the concept of djinn in muslin culture here. It looks good to me, but you should probably confirm your information before taking it as fact. Still, it looks like a good place to start.
Or actually, possibly the Torah as well. I suppose I should provide some context? See, I'm writing a story that has been smoldering in the back of my mind for years - the story of the son(s) of... more
... is to make the whole thing a heavy-handed metaphor for how Christianity (of your precise preferred breed) is far far better than any other religion. And then get a hammer. And write ' CULTURAL... more