For a dozen years on radio, Lon Clark starred as Nick Carter, Master Detective, the brilliant shamus who leapt from dime novels to pulp pages to the big screen and then to the airwaves. Aided by his girl Friday Patsy Bowen, Nick tackled cases that left the police scratching their heads in one of the longest-running detective dramas on the air. We'll hear Carter arrive in the "Nick" of time in "Dead Witnesses, or Nick Carter and the Case of the Murder Room," (originally aired on Mutual on February 26, 1944) and "The Case of the Unwritten Letter" (originally aired on Mutual on July 29, 1945).