It is said that it was once a meeting place for local sorcerers... But what is the origin of this site? Was it the remains of a pagan cult from the Gallic period?
In the early days of Christianity, the Arthon en Retz area retained many of these rituals, so there may be an explanation. As with the menhirs and the Gallo-Roman aqueduct, every unexplained site is a satanic creation in popular belief...
Source : www.chaumesenretz.fr