The Sealed Book was a radio series that featured mystery and terror tales, known for its melodramatic and thrilling style. The show's premise revolved around a mysterious keeper opening a secret vault containing a sealed book that held all the secrets and mysteries of humankind. Each episode introduced a new tale of murder, madness, or dark deeds, with Philip Clarke as the host. The series included organ solos that occasionally interrupted the chilling narratives, and it ended with fans being encouraged to tune in for the next week's story.

This captivating series aired on the Mutual network from March 18th to September 9th, 1945, where it was broadcast on Sundays from 10:30 pm to 11:00 pm. A total of 26 episodes were produced, beginning with "The Hands of Death" and concluding with "Death Laughs Last." Robert Arthur, Jr. and David Kogan were the scriptwriters and masterminds behind the series, having also created The Mysterious Traveler. They reused many popular stories from their previous creation for The Sealed Book, adding a hint of familiarity for fans of their earlier work.

Sources: archive.org, wikipedia.org, otrcat.com