Hey, that's great! It's like reading an article about this monument in a historical society's journal, excellent style! And I like how you pass all the questions and references about religion, sacred geometry, maths and ... eldritch things!
I enjoyed reading this a lot, and I am on to the second part now.
RE: The Case of the Missing Cathedral at Alleaume, part 1 (based on @nyarlathotep's "Mandala of Domination")