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The Slaver is ostensibly based on a story by James Oliver Curwood. The hero, Pat O'Malley, is a deckhand on the slave ship captained by e-vil John Miljan. O'Malley becomes an abolitionist in a hurry when he falls in love with heroine Carmelita Geraghty. Alas, Miljan intends to "sell" the girl to an African tribal chieftain, in exchange for a new consignment of slaves. The girl is rescued not by O'Malley, but by a courageous black cabin boy, who sacrifices his own life in the process. None of this sounds remotely like anything ever written by James Oliver Curwood, but who could blame the producers for "hype-ing" their film a bit?