On this bonus episode, Micheal chats with New York Times bestselling author Douglas Brunt about his first nonfiction book, The Mysterious Case of Rudolf Diesel. During their discussion, they chat about Rudolf Diesel and his invention of the Diesel engine, the impact both had upon the world, and the suspicious circumstances surrounding Diesel's disappearance in September of 1913. Thanks to Doug for appearing on the show, and make sure to check out the book at your local bookstore or library! To learn more, check out Douglas Brunt's website at the following link: https://douglasbrunt-author.com/ Hosted & produced by Micheal Whelan If you would like to support this podcast and others, consider heading to https://www.patreon.com/unresolvedpod to become a Patron or Producer This show is part of the Spreaker Prime Network, if you are interested in advertising on this podcast, contact us at https://www.spreaker.com/show/3266604/advertisement