Answer:
Mrs. Stevenson's window is near a train station, therefore is most likely the victim.
Explanation:
She now knows the men on the phone are involved and the time of the planned murder. She is only unclear of the hints of the locations. Paragraph 24," Okay. You know the address. At eleven o’clock the private patrolman goes around to the bar on Second Avenue for a beer. Be sure that all the lights downstairs are out. There should be only one light visible from the street. At eleven fifteen a subway train crosses the bridge. It makes a noise in case her window is open and she should scream." " As she does so, we hear sound of a train roaring by in the distance."
