The head teacher led the way to a private bedroom that was well heated and had Dave go back to the dormitory for some extra clothing. Then he left Dave and Shadow to themselves.
"This breaks me all up," said Shadow, moodily. "I thought I was all over those tricks."
"It was the hard study did it, and the tests," answered Dave. "You had that geometrical problem in your mind and couldn't get rid of it. Maybe you'll never walk in your sleep again."
"I sincerely trust not, Dave. It was good of you and the others to help me," and Shadow gave his chum a grateful look.
"We did very little, Shadow—indeed, I didn't know what to do. But when I saw you on the very end of the ridge I can tell you my heart was in my throat."
Before going to bed both boys indulged in a good rubbing down and consequently the exposure to the elements did them no harm. In the morning Shadow was excused from attending school and Horsehair was sent to town to get some of the medicine which the sleep-walker had taken in the past, after the exposure of his former exploits during the night.
With the coming of spring the boys had a vacation of several days. A few of the students went home, but the majority remained at Oak Hall, and, to pass away the time, indulged in all sorts of sports and pastimes, including a funny initiation of the Soden brothers.
At New Year a new gymnasium teacher had been engaged,—a fine man, who was an expert gymnast and also a good boxer and fencer. Since coming back to the Hall, Dave had become interested in both boxing and fencing, and spent some time under the new instructor.
"I believe a chap ought to know how to defend himself," he said to Roger. "In knocking around one doesn't know what kind of a hole he may be placed in,—and you can never know too much."