"place them where you want", they said. But if you want a consistent world, not every placement will make equal sense. Find thoughts and inspiration on where (and why) to put the Raven's purge sites.
Beware:
Spoilers ahead
Although your GM might have an entirely different view on the world. You have been warned, though.
Eye of the Rose
The Eye of the rose is said to be built upon the ruins of an old elven city. The most prominent elven city is Varassa, so it makes sense to place the Eye of the rose right there, even more so as it already is heartland to the Urhur Orcs and Hroka the first and the greatest.N19