"Hugh and I had the car out last night," said Bob, and then he began at the beginning and related the entire story through to the end. He told of their visit to the armory, their meeting with Harold on the bridge, the narrow escape with the bomb, their decision to watch the Wernbergs' house, their trip to the deserted house, the disappearance of the automobile, and finally its strange return.
Mr. Cook listened intently throughout the whole narrative, one exclamation as Bob told of the bomb episode being his sole interruption.
"That card must have been sent by the one that brought the car back," said Bob.
"It would seem so," his father agreed, and fell silent, thinking.
"That was a close call you boys had with that bomb," he said finally.
"Yes, sir," said Bob.
"What have you planned to do to-day?"
"We were going to report the loss of the car to police headquarters and then go out to the deserted house again, to see what we could find."
"You weren't going to say anything to the police about it?"
"No, sir."