Transcriber's Notes:
Reading edition
This story was previously serialized in a longer form in the Golden Hours story paper under the title "Van Vincent's Vow; or, Chased to the Heart of the Dark Continent."
Added table of contents.
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Some inconsistent hyphenation retained from the original.
Page 3, changed "that he man" to "that the man."
Page 4, changed "overheard" to "overhead" and added missing quote after "shipped to sea?"
Page 7, added missing quote before "Two of ther villains."
Page 14, fixed double semi-colon.
Page 25, changed "breathed if" to "breathed it."