“Repeated attempts, Nick, all of which have proved futile.”

“Has none of the victims been able to report its registered number?”

“We have had a dozen different numbers reported,” replied Chief Weston; “but investigation showed that all of them were fictitious.”

“Yet the crooks might be located, chief, if the make of the automobile were known,” suggested Nick. “That should have been easily learned by some of these people.”

Chief Weston shook his head.

“That would be true, Nick, providing the scamps always used the same machine,” said he. “Half a score of different automobiles have been reported as having been used by these knaves at the time of the numerous hold-ups.”

“H’m!” grunted Nick, with a shrug of his broad shoulders. “Evidently, then, these crooks have considerable money invested in their rascally enterprise.”

“It certainly appears so.”

“How about the horses ridden by them?” Nick next inquired. “Can the owner of none of them be discovered?”