Old Time Radio Blackstone Detective · Ed Jerome

Blackstone Detective - Vanishing Pearls

March 15, 2026·13 min·1 clip

Blackstone catches live goldfish from the air, leaving Don Hancock utterly baffled.

1. Blackstone the Magic Detective is a vintage American radio drama serial featuring Blackstone, billed as 'the world's greatest living magician,' who solves mysteries using observation and sleight-of-hand thinking. 2. The episode opens with Blackstone demonstrating aerial fishing in his study — catching live goldfish from the air — before explaining that the same technique figures in his next case. 3. Mrs. Fitzroyal invites Blackstone and his assistant Rhoda to perform at a country party; they arrive early for rehearsal and sit in the patio, where they observe a pond of rare, deliberately underfed carp. 4. Benton, a technician, arrives with an x-ray machine to test whether Mrs. Fitzroyal's pearl necklace — a gift from her late husband — contains real pearls or cheaper cultured pearls with an oyster-shell nucleus, a test required by the insurance company. 5. The x-ray confirms the pearls are real and worth approximately $45,000 more than cultured equivalents, before the room is deliberately darkened for the test. 6. During the darkened x-ray examination, the pearls vanish; Rhoda reports someone bumped into her near the light switch, and Benton claims to have seen a man climbing over the patio wall. 7. The servants search the grounds and find no intruder; a search of all persons in the room finds no pearls on anyone. 8. Blackstone notices over tea that the carp in the pond, which had been ravenously snapping at Rhoda's bread earlier, now refuse to nibble at the sandwich bits he absentmindedly tosses in. 9. He deduces that Benton broke the pearl cord, tossed the pearls into the fish pond when he drew the curtain as instructed — an act that gave him momentary cover — and the hungry carp swallowed them immediately. 10. Benton had also fabricated the fleeing intruder story to create a false lead, bumping into Rhoda deliberately to suggest a second person had entered the room. 11. Blackstone retrieves the fish and has them x-rayed, confirming the pearls are visible inside the carp, which he presents as proof to Mrs. Fitzroyal. 12. The episode poses Mrs. Fitzroyal a choice: recover the pearls surgically from the fish, or keep the fish. 13. After resolving the case, Blackstone demonstrates a second trick for listeners: how to lift an ice cube from a glass using only a piece of string by sprinkling salt on the ice to partially melt it, embedding the string, then allowing it to refreeze around the string. 14. The format is a live-action radio drama with named characters, period dialogue, and commercial breaks for Ottawa-area advertisers including a hospital fundraising campaign and a Subaru dealership. 15. The episode's tone is light and theatrical, with dramatic music cues and Blackstone's characteristic mix of showmanship and logical deduction. 16. Rhoda serves as Blackstone's assistant and the audience surrogate, asking questions that prompt Blackstone to explain his methods. 17. Don Hancock appears briefly as a skeptic in the opening scene whose doubting is quickly resolved by Blackstone's demonstration. 18. The mystery structure is conventional for 1940s-50s radio drama: a contained scene, a crime committed in darkness, false suspect created, and resolution through a detail only the detective noticed. 19. Fans of classic radio drama, puzzle mysteries, or historical entertainment formats will find this a well-constructed, briskly paced example of the genre. 20. Listeners expecting contemporary podcast production, commentary, or real-world content will find this entirely fictional vintage entertainment.

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