"How"—she enunciated only with visible effort and no longer met his appeal with an open countenance—"how can you do that?"

"In the long run, by establishing myself in some honest way of life, however modest; but now, and principally, by making reparation for at least one crime I've committed that's not irreparable."

He caught her quick glance of enquiry, and met it with a confident nod as he placed between them the morocco-bound jewel-case.

"In London, yesterday," he said quietly, "I brought off two big coups. One was deliberate, the other the inspiration of a moment. The one I'd planned for months was the theft of the Omber jewels—here."

He tapped the case and resumed in the same manner: "The other job needs a diagram: Not long ago a Frenchman named Huysman, living in Tours, was mysteriously murdered—a poor inventor, who had starved himself to perfect a stabilizator, an attachment to render aeroplanes practically fool-proof. His final trials created a sensation and he was on the eve of selling his invention to the Government when he was killed and his plans stolen. Circumstantial evidence pointed to an international spy named Ekstrom—Adolph Ekstrom, once Chief of the Aviation Corps of the German Army, cashiered for general blackguardism with a suspicion of treason to boot. However, Ekstrom kept out of sight; and presently the plans turned up in the German War Office. That was a big thing for Germany; already supreme with her dirigibles, the acquisition of the Huysman stabilizator promised her ten years' lead over the world in the field of aeroplanes…. Now yesterday Ekstrom came to the surface in London with those self-same plans to sell to England. Chance threw him my way, and he mistook me for the man he'd expected to meet—Downing Street's secret agent. Well—no matter how—I got the plans from him and brought them over with me, meaning to turn them over to France, to whom by rights they belong."

"Without consideration?" the girl enquired shrewdly.

"Not exactly. I had meant to make no profit of the affair—I'm a bit squeamish about tainted money!—but under present conditions, if France insists on rewarding me with safe conduct out of the country, I shan't refuse it…. Do you approve?"

She nodded earnestly: "It would be worse than criminal to return them to Ekstrom…."

"That's my view of the matter."

"But these?" The girl rested her hand upon the jewel-case.