Unfortunately, the mock-up on display here isn't accessible to the public, but you can join us for a behind-the-scenes look just after the break.

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As this letter tells us, Sloane had just been invited by Albemarle to join the second treasure-seeking voyage as his personal physician - and had jumped at the opportunity.

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He is just two verses away from finishing a handwritten version of the King James Bible, and he was kind enough to join us from his home in Philmont, New York.

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