Paul Saussez can be dismissed. By the way, Noël Corbu was a member of Société d'Etudes Scientifiques de l'Aude.

Something that you will not find in the book(s) by Saussez about the so-called “forgotten” crypt of Rennes-le-Château:

20 June 1993. Found out that an expedition team from the Vatican came to Rennes-le-Château a few months ago and “went away mouths shut”. And that they were “allowed to inspect places others over the years were forbidden to”. Entry from my diary.

True Believers of the Rennes-le-Château myths are so false. That is the only way that “researchers” like Paul Saussez can be described, who broadcast their propaganda on dubious websites that cannot be trusted because they publish all the Fairy-Tales they can assemble and put together. Saussez retired in 2017 so he's had plenty of time to nurture his fantasies.

It was not unusual for churches to have burial crypts.

The ACID TEST: let's see the archaeological societies take all this bombastic rhetoric seriously. I am sure they are taking “The Forgotten Crypt” as seriously as the treasure itself.

AGAIN: It is normal practice for real archaeologists to make the discovery first and then announce the fact.