"At the exit of Couiza, a road goes up sharply to the left, it is the road to Rennes-le-Château. On the edge of theplateau cuts out a singular decor: ruined houses, a dilapidated castle, overlook and merge with the limestone cliff; then avilla, a crenellated tower, new and modern: it is the domain of a priest who would have built this sumptuous house with the money of a treasure found,say the peasants!
Jean Girou, The itinerary in the land of Aude, p.169, 1938.
This is the website of Michel Vallet, known as Pierre Jarnac - a French essayist and treasure hunter. He is well known in the world of Rennes-le-Château. Fabulous website to be found HERE.