Paranormal Britain’s Last Witch: The Final Séance (BBC Three, Sunday, March 30, 2025)

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The final episode of BBC Three’s “Paranormal Britain’s Last Witch” arrives this Sunday, bringing with it some startling revelations. Was Helen Duncan, the medium who claimed to conjure spirits, actually a spy? That’s the question at the heart of this concluding chapter, as investigator Sian pieces together a complex puzzle of wartime secrets, espionage, and alleged paranormal activity.

A mysterious package arrives containing potential evidence linking Duncan to yet another wartime revelation: the sinking of a second warship. Sian questions how Duncan knew of the event before its public acknowledgement. Did she truly gain access to this information from the other side, or was she privy to classified intelligence through more conventional means?

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The investigation confirms that Helen Duncan was a true source of unease for the authorities. Her activities, deemed dangerous in a time of war, eventually led to her prosecution under the Witchcraft Act. Even after prison, the authorities suspected Duncan of continuing her mediumship activity. The episode explores Sian’s meetings with Duncan’s granddaughters where the latter reveals the impact these events had on her family.

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“Paranormal Britain’s Last Witch: The Final Séance” airs Sunday, March 30th at 9:30 PM on BBC Three.

Isabelle aka Izzy Jacobs is the features editor at memorabletv.com. Isabelle is particularly drawn to crime dramas, but she also has a not so secret love for all things reality TV. In addition to her work at memorabletv.com, Isabelle is also an avid traveler and a devoted foodie.