Locked Room Library #5: THROUGH THE WALLS (1937)

As I mentioned in the masterpost for this blogging endeavour, French mystery authors are a bit of a lacuna in my mystery knowledge. Noël Vindry is one such author, a mystery novelist who wrote a string of meticulously fair-play "puzzle novels" in the 30s and 40s before quitting the genre, and is apparently almost as forgotten in French as he is in English. Thankfully, I don't have to lean on my shoddy French skills, as John Pugmire translated several of his best works into English through Locked Room International, including Through the Walls . The Locked Room: A family is menaced by a mysterious intruder who leaves the house's upstairs without having entered, can kill in locked bedrooms and in broad daylight while facing the victim, and vanish in plain sight. The Story: Through the Walls leans towards the far extreme of the puzzle plot, which is to say, there's vastly more puzzle than plot. Petty bureaucrat Sertat comes to Police Commissaire Maubritaine looking...