"Why, they drive up in the truck and pretend to be changing a tire or repairing the engine. Passersby notice nothing amiss."
"But what if the owner appears?"
"They drive away or if actually caught claim that they have made a mistake in identifying the car of a customer."
"The driver of the garage truck did act suspiciously," Susan admitted. "I was stupid not to jot down the license number."
The girls were talking so earnestly that they failed to note the approach of a policeman. He paused to see what was wrong.
"Wheel stolen?" he asked, surveying the car critically.
"The wheel, the generator, and almost everything detachable," Susan informed. "I was only gone a few minutes too."
"Have you reported to headquarters?"
Susan shook her head.
"What's the use?"