The Problem of Cell 13 by Jacques Futrelle / Uncategorized / By Mardell Music The Locked Room The Problem of Cell 13 by Jacques Futrelle Play Episode Pause Episode 1x 00:00 / Subscribe Share Apple Podcasts Pandora Podcast Addict Spotify RSS Feed Share Link Embed The “Thinking Machine” solves a baffling locked room mystery Mardell Music See Full Bio