Frank Chandler learned mystical secrets in India and returned to the west as Chandu the Magician to put his newfound powers to work fighting evil. One of radio’s most popular serial adventure characters, Chandu first came to the air in 1932 and returned for a revival in the late 1940s. Aided by his niece and nephew, as well as a cast of mysterious characters, Chandu was a magical menace to evildoers everywhere. We’ll hear Tom Collins as Chandu in “The Temple at Karnak,” originally aired on Mutual on March 17, 1949.