Heresy
The Didact takes a look at one of the heresies that nearly tore apart the church and western civilization. One that bears more than a few similarities to today.
It came to a very sobering end:
The Cathar Heresy ended with the massacre of thousands of followers of their pseudo-religion and the burning alive of over 200 Cathar prefects. It resulted in the establishment of the Inquisition, a deeply maligned and thoroughly misunderstood organisation that nonetheless has gone down in history as one of the most infamous and feared defenders of the Faith ever seen.