Summary: Sherlock Holmes tries to recover blackmail letters leading to a confrontation with the Napoleon of Crime-Professor Moriarty.<br><br>Original Air Date: September 25, 1938<br><br>Support the show monthly at patreon.greatdetectives.net<br><br>Support the show on a one-time basis at http://support.greatdetectives.net.<br><br>Mail a donation to: Adam Graham, PO Box 15913, Boise, Idaho 83715<br><br>Take the listener survey…http://survey.greatdetectives.net<br><br>Give us a call 208-991-4783<br><br>Become one of ourfriends on Facebook.<br><br>Follow us on Instagram at http://instagram.com/greatdetectives<br><br>Follow us on Twitter@radiodetectives
