In Search of the Old Faith

from the Introduction:
In the second edition of WFRP, the Old Faith no longer exists in the Empire, having given way to the worship of Taal and Rhya as well as the other gods. There are hints that the Druids and their followers left the Old World for other lands, particularly Albion.

But, what if they haven’t left? What if, instead, the children of the Old Faith lived on in the backcountry and isolated villages of the Empire, quietly practicing their ancient faith and remaining as unobtrusive as possible? Living in constant fear of another Great Persecution, how do followers of the Old Faith fit in the Empire?