On today's Past Present, we'll try to learn some tricks of the trade from Theo Hardeen, Harry Houdini's brother and an accomplished magician and escape artist himself. Harry Houdini left his secrets with Theo, but Theo was instructed to have them burned after his own death. This interview originally aired on July 3, 1939 as part of WNYC's "Voice of the Theatre" program. The host is Ezra McIntosh.