So does a tiny, sharp sound strike upon our senses and bring them into life again from sleep, making us aware of a state of things that has been going on for some time perhaps without our realization. The sound that roused him may have been the click of the stateroom latch as Gordon opened the door. The shades were down in the man’s berth and the curtains drawn close. The daylight had not as yet penetrated through their thickness. But once awake his senses were immediately on the alert. He yawned, stretched and suddenly arrested another yawn to analyze the utter stillness all about him. A sonorous snore suddenly emphasized the quiet of the car, and made him aware of all the occupants of all those curtained apartments. His mind went over a quick resume of the nights before, and detailed him at once to duty. Another soft clicking of the latch set him to listening and his bristly shocked head was stuck instantly out between the curtains into the aisle, eyes toward the stateroom door, just in time to see that a man was stealing quietly down the passageway out of the end door, carrying two suit-cases and an umbrella.