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  ===Writing===
  Series co-creators David Benioff and D. B. Weiss wrote the episode
  "Book of the Stranger" was written by the series' creators David Benioff and D. B. Weiss. Some material in this episode is taken from the Jon XIII chapter in ''A Dance With Dragons''. Some elements in the episode are also based on the sixth novel in the ''A Song of Ice and Fire'' series, ''The Winds of Winter'', which author George R. R. Martin had hoped to have completed before the sixth season began airing.