"I hadn't given the matter any thought until a few moments ago, when Prof. Babbitt met me and remarked that he was in great trouble because a student had somehow entered his room and stolen a paper.
"I then told him what I had seen and he asked me to come here and tell the same thing to you. I think that this thing occurred on Tuesday."
"Are you quite sure?" asked Frank.
Mr. Harding took some envelopes from his pocket and looked them over.
"Yes," he said, "I had an important letter come a few minutes after that, and I see by the postmark here that it was delivered on Tuesday. I am certain that it was Tuesday."
"I only wish to say," said Frank, turning to the dean, "that it was on Tuesday that Prof. Babbitt took his question paper to the printer. The printed examination papers could not have been delivered before Wednesday at the earliest."
CHAPTER VII.
A FORCED CONFESSION.
There was a sarcastic smile on the dean's face as he turned to Prof. Babbitt and asked: