In the radio drama series that premiered in 1937, the Allard secret identity and backstory were dropped for simplicity's sake. The radio incarnation of The Shadow is really and only Lamont Cranston with no other regular cover identities, though he does adopt disguises and short-term aliases during some adventures. The radio version of Cranston travels the world to "learn the old mysteries that modern science has not yet rediscovered" ("Death House Rescue" in 1937). Along with learning skills and knowledge in Europe, Africa, and Asia, he spends time training with a Yogi priest, "Keeper of the Temple of Cobras," in Delhi and learns how to read thoughts and hypnotize people enough to "cloud" their minds, making himself invisible to them (as revealed in the episode "The Temple Bells of Neban" in 1937). He explicitly states in several episodes that his talents are not magic but based on science. Returning to New York, he decides he can best aid the police and his city by operating outside the law as an invisible vigilante. He is somewhat less ruthless and more compassionate than the pulp incarnation.