The Hook March 1925: The antiquarian community is excited by report of mysterious occurrences and wanton vandalism at the Pech Merle caves in Southern France. Newspapers, letters from friends and reports filed by Martine Valois, secretary to the curator of the caves, turn up the following, tantalising snippets: ‘Strange dreams of drowned cities’, ‘howling, gibbering beasts’, ‘passages crudely opened or blocked again’, ‘Professor Duras has gone mad’.