A charred mass in the grate indicated that Mrs. Vandemeyer had been burning papers on the eve of her flight.
Mrs. Vandemeyer was trying to hid evidence and burned it up in her fireplace.
mnli hypothesis: Mrs. Vandemeyer was trying to hid evidence and burned it up in her fireplace. premise: A charred mass in the grate indicated that Mrs. Vandemeyer had been burning papers on the eve of her flight.