The paper disappeared as though it had been drawn swiftly back from the inside, just as the sergeant came up.
"Gee!" gasped Tom.
"Prisoner all right, Rabig?" inquired the sergeant.
"Yes, sir," replied Rabig. "He seems to be keeping pretty quiet. I looked in a little while ago and he was lying asleep on the bench."
"Keep a close watch on him," counseled the sergeant. "What he tried to do to Raymond yesterday shows that he's a desperate character. But I guess that by this time to-morrow he won't need any one to watch him."
The sergeant passed on and the boys looked at each other with speculation in their eyes.
"What do you think of it?" asked Frank thoughtfully.
"Think?" snorted Tom. "I think that Rabig is a bad egg. What else is there for any one to think?"
"It certainly looks suspicious," said Bart with a little wrinkle of anxiety creasing his brow.
"One thing is sure," declared Billy. "It was a note that was being pushed outside that door. The fellow inside was trying to get into communication with Rabig."