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The episode opens with a reading from this novel. It's described as 'a subsection of a colossal novel called The Vicomte of Bragolon, which is the third in the series of novels that begins with The Three Musketeers.'

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Mentioned as the larger novel that contains The Man in the Iron Mask, described as 'the third in the series of novels that begins with The Three Musketeers.'

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Mentioned as the first book in the series that includes The Man in the Iron Mask. The hosts discuss their familiarity with the story and its characters like D'Artagnan and Porthos.

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Explicitly mentioned as a book Voltaire published in 1751: 'he publishes a book called The Century of Louis XIV. And in this book, there is an entire chapter about the man in the iron mask.' This is where Voltaire coined the phrase 'the man in the iron mask.'