“I told you about the rope,” reminded Cranston. “It was hooked to the elevator.”

“But who pulled it? A dozen men?”

“The merry-go-round pulled it. That’s where the rope was attached. The rope is under the merry-go-round now, all wound around.”

With that statement, Lamont Cranston was explaining the muffed music that Phil Harley had heard the night before. Margo knew nothing about that, but she realized the importance of the cab switch.

“You mean that’s how Winslow Ames was abducted?” Margo asked.

“It’s how the job was covered up,” returned Cranston. “I think that Ames was taken along past the merry-go-round and later dropped from a bridge over the transverse into a passing truck.”

“What would the police think of that story?”

“If you would like to know,” responded Cranston, blandly, “suppose we go and find out.”

They rode in the old hack to Central Park South and there took a cab to the swank Cobalt Club where Commissioner Weston was often found late in the afternoon. The commissioner was present and Inspector Cardona with him, but when Cranston suggested his theory, it registered a total blank.

“I was thinking about the Ames case,” began Cranston. “If his cab had gone to Central Park -”