After years of scientific research Thomas Kellner, an eccentric chemist, succeeds in manufacturing an imitation diamond, with the help of his son Jack. This diamond is such a wonderful imitation that even experts cannot tell it from the genuine article and the leading jewelers of the city, Tiffany and Co., are fooled completely. The son is so overjoyed and excited at their crowning success that his heart is affected and he dies. He is the master workman of the two and had been the one who turned out the imitation diamond. Fifteen years later his daughter, who has grown into beautiful womanhood, is engaged to Wynne Browning. All through the years she had kept her father's secret locked in her breast, though vowing constantly to avenge the death caused by his services to science, by making the world pay. She tells her sweetheart of her vow. They leave for the city to see what they can do toward disposing of it for ready cash. Some means of communication must be established with Doris's ...
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