If you are listening to this classic case featured on the Hastings Mystery Theater, the audio podcast presentation opens with the signature introductory breakdown by host Randall Schaefer: "While searching the wreckage, Charlie Chan recovers Colby's personal diary, which reveals that multiple attempts had recently been made on the heir's life. Chan travels to the family's San Francisco mansion to investigate. In the meantime, the family matriarch, Henrietta Lowell—a devout believer in 'psychic research'—arranges a séance to determine if her nephew is dead or alive."