"Let us set a regular watch," suggested Tom. "We can take turns. One can watch while the others sleep."
"All right, I'll watch first," answered Dick.
"Call me in an hour, Dick," returned Tom.
"And call me an hour after that—if you want me," added Sam.
The hallway was long and but dimly lighted. At the end was a sofa, and after walking up and down several times, Dick sat down on this. The long journey from Valley Brook farm had made him sleepy, but he resolved to keep wide awake, in case the mysterious individual should again show himself.
"He's got to come out of his door some time, unless he tries to get away by a fire escape," thought the youth. "And I guess all the fire escapes on this side of the building are at the end of the hall. I hope I've got him trapped, whoever he is."
Half an hour went by and nothing unusual happened. Then Dick heard a distant elevator stop, and two men got off and came down the hallway. They stared rather curiously at the youth.
"What's the matter?" asked one, presently.
"Waiting for a friend," was the answer.
"Humph! rather late," remarked the man.
