The Moonlight Detective/Beneath the Stains of Time has posted a fabulous review of Marcel Lanteaume’s French Golden Age classic:
http://moonlight-detective.blogspot.com/2020/12/the-thirteenth-bullet-1948-by-marcel.html
‘…A glorious, unapologetic flight of fancy… can stand with the best pulp-style locked room mysteries.’
Lanteaume keeps throwing twists, surprises and dangers