About ten yards ahead of them was a Ford sedan with the license number S 91 52 parked at the curb. Walters swung over to the curb and pulled up directly behind the Ford car.
CHAPTER XXIX
Mystery Solved
The three of them jumped out of the car and approached the Ford. Walters looked it over, checked the license number and said, “This is it, all right.”
Ken threw open the door next to the steering wheel. “Hey, Paul, Walters,” he cried, “come here, quick.”
He was joined by his friend and the detective. “Look,” he muttered and pointed at the driver’s seat.
They looked. There on the seat lay a white card. Walters grabbed it and turned it over on both sides. It was a plain, white, blank card. “Can you beat that!” gasped Walters.
Paul took his own card out of his pocket and gave it to Walters. “Here,” he said, “compare the two.”