"Listen! I hear somebody now!" exclaimed Roger. "Maybe they are coming back."
"No, that is my father who is calling!" replied our hero. "I'll let him in."
He ran to the office door, and finding a key in the lock, opened it. Roger swung the lantern, and soon Dave's father and his uncle came up, followed by Mr. Wadsworth, who, being somewhat portly, could not run so fast, and had to be assisted by Phil.
"What have they done?" gasped the manufacturer. "Tell me quickly! Did they blow open the safes?" He was so agitated that he could scarcely speak.
The boys did not reply, for there was no need. Mr. Wadsworth gave one look and then sank down on a desk, too overcome to make another move.
"Did you see anything of the robbers, Dave?" asked his father.
"Not a thing."
"And where is the watchman?"
"I don't know."
"Strange, he must be somewhere around. He told me of the robbery and then he said that they were coming after him. Then the message was suddenly cut off."
"It looks like foul play to me," said Dunston
