"Bailley, sir."
"You were on guard here last night?"
"Yes, sir. I was detailed as a special guard over No. 9764."
"Tell me in your own words just what happened. Don't be afraid to speak out; I'm not going to disbelieve you; and above all, tell me everything, no matter how unimportant it may seem to you. I'll judge the importance of things for myself. I'm Dr. Bird of the Bureau of Standards."
The guard's face lighted up at the doctor's words.
"I've heard of you, Doctor," he said in a relieved tone, "and I'll be glad to tell you everything. At ten o'clock last night, I relieved Carragher as special guard over No. 9764. Carragher reported that the prisoner was somewhat restless and hadn't been asleep as yet. I sat down about fifteen feet from his bed and prepared to keep an eye on him until I was relieved at six o'clock this morning.
"Nothing happened until about two o'clock. No. 9764 was restless as Carragher had said, but toward midnight he quieted down and apparently went to sleep. I was sleepy myself, and I got up and took a turn around the room every five minutes to be sure that I kept awake. That's how I am so sure of the time, sir."
r. Bird nodded.