The Book Unwritten belongs the the Brothers of the Invisible Library. They have spent the last 500 years creating an oral gospel of a pilgrim by the name of Khem. They first must learn the book exactly as is from the first monk to this day. Then they can create a second book that they can transmit to their apprentice. But they can't just make it up, each change is challenged by the other brothers till at the end what is left shines like a diamond. The brothers say they will set down to paper their perfected gospel when the sun rises in the west and five thieves give the greatest gifts to Rome.
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