"Dead!"

"Oh, quite!" the Englishman affirmed nonchalantly, "When we arrested him at three this morning—charged with complicity in the murder of Roddy—he flew into a passion that brought on a fatal haemorrhage. He died within ten minutes."

There was a little silence….

"I may tell you, Mr. Lanyard," the Englishman resumed, looking up from the motor, to which he was paying attentions with monkey-wrench and oil-can, "that you were quite off your bat when you ridiculed the idea of the 'International Underworld Unlimited.' Of course, if you hadn't laughed, I shouldn't feel quite as much respect for you as I do; in fact, the chances are you'd be in handcuffs or in a cell of the Santé, this very minute…. But, absurd as it sounded—and was—the 'Underworld' project was a pet hobby of Bannon's—who'd been the brains of a gang of criminals in New York for many years. He was a bit touched on the subject: a monomaniac, if you ask me. And his enthusiasm won De Morbihan and Popinot over … and me! He took a wonderful fancy to me, Bannon did; I really was appointed first-lieutenant in Greggs' stead…. So you first won my sympathy by laughing at my offer," said Wertheimer, restoring the oil-can to its place in the tool-kit; "wherein you were very wise…. In fact, my personal feeling for you is one of growing esteem, if you'll permit me to say so. You've most of the makings of a man. Will you shake hands—with a copper's nark?"

He gave Lanyard's hand a firm and friendly grasp, and turned to the girl.

"Good-bye, Miss Shannon. I'm truly grateful for the assistance you gave us. Without you, we'd have been sadly handicapped. I understand you have sent in your resignation? It's too bad: the Service will feel the loss of you. But I think you were right to leave us, the circumstances considered…. And now it's good-bye and good luck! I hope you may be happy…. I'm sure you can't go far without coming across a highroad or a village; but—for reasons not unconnected with my profession—I prefer to remain in ignorance of the way you go."

Releasing her hand, he stepped back, saluted the lovers with a smile and gay gesture, and clambered briskly to the pilot's seat of the biplane.

When firmly established, he turned the switch of the starting mechanism.

The heavy, distinctive hum of the great motor filled that isolated hollow in the Downs like the purring of a dynamo.

With a final wave of his hand, Wertheimer grasped the starting-lever.