The cult of the Eternal Fire is not only a religious organization featured in the game; its influence is also felt in the novels. One of the short stories in Το Ξίφος του Πεπρωμένου (Miecz przeznaczenia) is entitled "Αιώνιας Φλόγας", or "Αιώνιας Φλόγας" in Polish.
Στο παιχνίδι The Witcher
Other people the witcher meets in his travels may or may not belong to the cult. Other religions are also portrayed. Druids, followers of Melitele, the Lady of the Lake and nonhumans in particular do not adhere to that faith. Our hero also meets worshippers of the Water Lords and of Dagon.
Eternal Fire is very aggressive faith which fights against all abnormal beings such as nonhumans, witches and, of course, beasts. Occasionally, even witchers aren't welcome in cities that believe in Η αιώνια φωτιά.