“You dog of a newspaper spy,” snarled Rogero, his face a pasty yellow and fear in his eyes, “I know you. You are a sneaking reporter. We don’t like such renegades as you in my country. We have a way of dealing with them, however, that usually causes them to cease from troubling us.”

He raised his hand to his throat and gave an unpleasant sort of an imitation of the “garrotte” which is the instrument of execution in most Latin-American countries.

“JUST HOLD THAT POSE A SECOND, GENERAL.”

“And we in the States have also got a way of dealing with men like you,” said Billy meaningly. “Now,” he went on in a low voice, stepping close to Rogero, “if you harm that aeroplane in any way I’ll forward the picture, I just took to Detective Connolly of the New York Central Office, and I think he can have a very interesting time with it tracing your movements in New York before the murder of Dr. Moneague!”

If he had been struck full in the face the effect on Rogero could not have been more magical. He opened his dried lips as if to speak, but no sound came. In his eyes there was a hunted look.

“I’ll have you——,” he began when he at last found his voice.

“You’ll have nothing,” replied Billy cheerfully, “because you don’t dare. Now, then; tell these boys they can have their aeroplane unharmed. Write them an order—here’s my pad and a fountain pen—don’t forget to give them back.”

Rogero snarled like a cornered tiger, but he took the pen and scrawled a passport in Spanish on Billy’s pad.

“Take your wonderful flying machine then, and I only hope you break your necks,” he muttered. With an evil look at Billy which did not at all seem to worry that amiable young gentleman who merely winked knowingly in reply, he turned on his heel and strode off followed by his soldiers.