Sherlock Holmes investigates the death of a nobleman which is tied in to a mysterious ghost who haunts an English castle. Original Air Date: September 19, 1948 Take our listener survey: http://survey.greatdetectives.net Become one of our friends on Facebook... http://www.facebook.com/radiodetectives Call 208-991-4783 to leave a voicemail. Click here to download, click here to add this podcast…