That was merely the first of a whole week of days that seemed amazingly alike. Mr. Fulton tried to make the work as interesting as possible by letting them change off jobs as often as he could. But even then there was little that under ordinary circumstances would interest a regular out-of-doors boy. What helped was that the circumstances were not ordinary. It was all a big game to them—a fight against odds. Perhaps at times the screwing of greasy nuts on greasier bolts did not look much like a game, nor did the tedious pushing of a plane or twisting a brace and bit look like a fight, but every one of the boys sensed the tense something that was back of all Mr. Fulton's cheery hustle.

They knew that his arm and shoulder hurt fearfully at times, but never a complaint did they hear from him, although he was all sympathy over the blood-blisters and cut hands of their own mishaps.

But the second week made up for any lack of excitement that the boys had felt. The week was up Wednesday night. On Thursday morning Mr. Fulton met them with a white face that somehow showed the light of battle.

"Guess you'd better arrange, Boss Jerry, to leave a couple of your Scouts on guard here nights," was all he said, but the boys felt that something disturbing had happened the night before. They questioned Elizabeth when she brought their lunch, which they ate from benches and boxes to save time, but she would give them no satisfaction. Tod seemed to know something, but he too was strangely mum.

Jerry decided to remain over that night himself, and Phil, who had dropped a steel wrench across his toes and so had to remain for medical attention anyway, offered to share the watch with him. After Mr. Fulton had left them at about ten o'clock, they talked for awhile together, but finally they both began to yawn.

"What'll it be?" asked Phil. "Two hours at a stretch, turn and turn about?"

"Suits me," said Jerry. "Ill take the first trick."

Phil's snoring something like fifty-nine seconds later was sufficient answer. All was still, and Jerry set about to await midnight, when he could hope for a brief snooze. After a while the silence began to wear on his nerves and in every night noise he fancied he heard steps. He sat still and watchful, hardly breathing at times, his finger poised above a push button that would ring a bell where Mr. Fulton lay stretched out on a pallet on the floor of the tiny cabin.

But midnight came and nothing had happened. He roused Phil and then hunted himself out a soft spot in which to curl up. But he had grown so used to listening that now he found he could not stop. He tried counting, only it was fish he was catching instead of sheep going through the gap in the hedge. It was no use. At last he got up and stretched himself.

"Guess I'll take a turn around in the cool air; I can't seem to sleep."