(I was considering putting this in the plot section, but I just thought of this on the spot and dont have any details, so please post your thoughts.)
The sect of D'kharin, Zealots of the god D'kharin, have always enforced to the local populace the beliefs and laws their deity have bestowed them. Using the magical powers given by their god to a select few, they forcefully ensure the peasants follow their strict laws, pay tithes and dutifully worship D'kharin. The lucky few commoners who show the mark of D'kharin at birth - Raven-black eyes. Not just the pupils, the whole eyes - are taken from their parents at the age of two (whether willingly or not), and trained throughout their lives to embrace their gift. The sect maintains that only those born on the blessed land of D'kharin have a chance of obtaining this gift of power.
The town that the sect resides in resides in the far reaches of the country, and thus gets perhaps as little as one or two outsiders a year. Therefore the town was always in commotion when someone arrived, so they could learn news of the outside lands - nobody in this town EVER travelled far from their homeland, so information was priceless to them.
This particular year, the town is once again in commotion as a new traveller arrives, but instead of loud welcomes and exclaimations, the local townsfolk speak in hushed whispers, and stare at this newcomer in shock, horror. The man is ragged in appearance, dressed in little more than rags and carrying a simple wooden, knotted walking staff. His hair is unkept and face unshaven. But nodoby was looking at that. They only saw his eyes. His completely black, pupilless eyes...
Of course, the peasants asked many questions, and with a sample of his power, and many argumentive words, the locals began to question the word of the sect of D'kharin. The stranger explained that, though the gift is rare, it has nothing to do with 'divine right'. It is merely chance on whether you are born with it or not. To the shock of many, he states also that there is no such god as 'D'kharin'.
Before long the zealots, having magic at their disposal, learn of this 'heretic', and drive him out of the town. But the seed of doubt had already been planted, and the commoners began slacking off, questioning their former religion. The elders of the once-powerful sect realise that their hold over the land is slipping, and therefore come to the conclusion that they must search for this heretic and bring him back to confess that all he said was a lie. They soon send members of their sect, and also adventurers - whether lured by the prize of gold, the interest, or drawn into it unwillingly - to hunt this man and bring him back alive.
((Thats all I can think of for the moment. Please add suggestions or whatever, and also some good names!!!! I am SHOCKING with making up names :'( If I get enough ideas and stuff for it, I might add it to the plots section. Thank you.))