Startled, the three chums looked at one another.
[CHAPTER III]
WHEN THE WHEEL CAME OFF
“What was that?” asked Bob, and when it is added that he whispered the question it may better be understood what a hold the finding of the letter had taken on the boys. Already they seemed to be within the mystery at which it hinted.
Then Jerry realized the futility of Bob’s query.
“It sounded very much like a knock on the door,” and his tone was humorously sarcastic.
“Say! are you going to keep me here all day? What’s the matter in there? Open up! I’ve got news for you!”
“It’s Jim Blake!” exclaimed Jerry, now recognizing the voice of the person on the other side of the door.
“Of course it is!” came the reply. “What’s the matter? Is Bob Baker giving one of his spreads? If he is, let a fellow in on it, can’t you? Open the door!”