"I am not allowed to—just yet."
"Humph! I thought so. It's all bosh. I——"
Just then the angry professor caught sight of Frank and Andy. The expression of his face, when he saw two of his students whom he supposed safe in their dormitories, now several miles away, can well be imagined. His jaw dropped and his eyes opened wide.
"What! You—you here?" he gasped. "How dare you?"
"I don't see why we dare not call on our friends," said Frank coolly.
"You dare to leave the school grounds after hours!" stormed the professor. "You shall be severely punished for this! I have been suspecting you Racer boys for some time, and now I have caught you. You shall suffer for this. Where's my hat? I am going back to Riverview at once to report you!"
He strode out of the room, while Frank and Andy gazed blankly at each other.
CHAPTER XI
BITTER DISAPPOINTMENT
The door slammed behind Professor Callum. It seemed to break the spell of silence that hung over all.