Then, by Heaven, snarled the Russian, "we will see  " But Mrs. Vandemeyer also rose to her feet, her eyes flashing.
The Russian's statement caused Mrs. Vandemeyer to rise to her feet.
mnli hypothesis: The Russian's statement caused Mrs. Vandemeyer to rise to her feet. premise: Then, by Heaven, snarled the Russian, "we will see  " But Mrs. Vandemeyer also rose to her feet, her eyes flashing.