"He must be full of business."
"I suppose that is so."
When Nat went to the office on the following day he again met Harry Bray at the entrance. They went upstairs together, and found two men standing in the hallway, near the door of the office. As soon as they entered the place the men followed them.
"Neither of these young chaps is the man," said one of the newcomers, in a low voice.
"Where is Mr. Hamilton Dart?" asked the other.
"I can't say, sir," answered Harry Bray. "He may be here shortly."
"Are you a partner in this concern?"
"No, sir. I am a clerk."
"Are you a clerk, too?" asked the man, turning to Nat.
"Yes, sir. Is there anything we can do for you?"