Sherlock Holmes helps the lord of a manor who has received a threatening letter. Original Air Date: February 1, 1948 Take our listener survey...http://survey.greatdetectives.net Become one of our friends on Facebook... http://www.facebook.com/radiodetectives Vote for the show on Podcast Alley...http://podcastalley.greatdetectives.net Call 208-991-4783 to leave a voicemail. Click here to download, click…