The World of Avlis

Well people you see I made a character that worships Aarilax and I have been confronted with two problems: 1) I can't find that much info about him as I would lik (his goals, his view of how the world should be, what his worshippers do in the world,...) and 2) I can't find any of his temples or others-NPC-of his followers except for them Lizardman Clerics that attack you in the Wilderness.
I anyone can give me some info on this I would be very greatfull

Is your character a lizard?

Nope but he might as well be because he is barely human (if your speaking about remorse and emotions) and has a ferocious and vile nature. For clarification on him I would say read his story (Sydney Loostarot is his name) its posted here...somewhere

Where are a majority of his followers found (as in what city)?