![The Great Detectives of Old Time Radio show](https://d3dthqtvwic6y7.cloudfront.net/podcast-covers/000/027/051/small/the-great-detectives-of-old-time-radio-podcast.jpg)
Summary: Mr. Keen is called in by the owner of a war plant to find a missing chemical engineer. Original Air Date: February 17, 1944 Support the show monthly at patreon.greatdetectives.net Support the show on a one-time basis at http://sup Read more ...