midday
Marie Crismore looked at them with a little squint of intelligence and said as she arose from her chair : `` I think I 'll go , too , for a change . '' But this is what she interpolated to herself : `` They 're going back there to spy , and I think I 'll go and spy , too . '' They found Langford in the observation car , apparently asleep in a chair . Katherine , who entered first , declared afterwards that she was positive she saw him close his eyes like a flash and lapse into an appearance of drowsiness , but if she was not in error , his subsequent manner was a very clever simulation of midday slumber . Three or four times in the course of the next hour he shifted his position and half opened his eyes , but drooped back quickly into the most comfortable appearance of somnolent lassitude . The three girls were certain that all this was pure `` make-believe , '' but they did not communicate their conviction to each other by look or suggestion of any kind . They played their part very well , and it is quite possible that Langford , peeking through his eyewinkers , was considerably puzzled by their manner .