Then he stopped short, quickly adding:

“So is a cop!”

“How do you know?” asked Harry, in great agitation.

“Saw him pass by the light of the side lamp. There—there he goes!”

They saw the policeman cross the street and disappear, walking along slowly.

“Wheejiz!” gurgled Rattleton. “That was a close shave!”

Again they went forward.

Frank whistled a soft signal, and Griswold whistled back. Danny was standing beside the open cab door as the daring young kidnapers came up.

“All right?” asked Frank.

“O. K.,” Griswold assured in his curt way. “Cop just went along, but he’s gone now.”