Guillaume Delaage is the author of a number of books on ancient mysteries and esotericism. He frequently refers to Helena Blavatsky and holds her writing in high regard. On his website, there is a six-part article(a) on Atlantis. He reviews the leading theories, but in the final part seems to find the theories of Otto Muck the most convincing.
>His Atlantis papers are no longer online but anyone with the stamina can still read page after page of waffle regarding Hermetic Teaching and global consciousness on his website(b).<
(a) https://www.guillaume-delaage.com/articles/01-civilisations/civilisations-disparues/civ_atlantide1.html (French) This link is now broken. *
(b) https://www-guillaume–delaage-com.translate.goog/category/chroniques/?_x_tr_sl=fr&_x_tr_tl=en&_x_tr_hl=en&_x_tr_pto=sc (English) *