John Humphrys presents as four former Mastermind champions go head to head. The subjects include King Michael of Romania, Roald Amundsen and The Mystery of Rennes-le-Chateau. Show more
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John Humphrys presents as four former Mastermind champions go head to head. The subjects include King Michael of Romania, Roald Amundsen and The Mystery of Rennes-le-Chateau. Show more