Anchor: How she was to detain Mrs. Vandemeyer until the two men arrived, she did not know, but somehow or other it had to be done, and she must accomplish the task single-handed.
Entailed: She had no idea how to keep Mrs. Vandemeyer from leaving, but she has to find a way herself. 
Contradiction: She so very badly wanted to release Mrs. Vandemeyer. 
Contradiction: A dog chases after a car as it drives down the road.
Contradiction: Several people are outside walking.
Contradiction: I jumped into the truck.
Contradiction: Her depressed message is disguised by the tone in her manner of writing.