Yvette had been delicately brought up. She was accustomed to luxury, and Dick could only realise that his present prospects were such that, even if he were sure she cared for him, a marriage between them must entail such sacrifice on her part as he could not contemplate with equanimity.

But, though dull, he had not been idle. The brilliant initial test of the new motor-plane, which he had fancifully christened “The Mohawk” had stirred his ambition, and every moment he could snatch from business had been devoted to thinking out and applying improvements. Some of these had been of real importance, and the machine had gained substantially in strength and lifting power, as well as in speed both on the ground and in the air. He was also making experiments in gliding.

For some months he had heard little of Yvette. A few brief notes had told him she was well. But that was all, and he felt a little hurt. He never dreamed that Yvette’s feelings were singularly like his own; that she, too, was the prey of emotions which sometimes alarmed her. They were, in fact, kept apart by Dick’s shyness and poverty, and by the French girl’s profound pride and reserve.

Matters were in this stage when Dick, to his great surprise, received a brief telegram from Yvette.

“Can you come to Paris? very urgent—Yvette,” the message ran.

Dick left at once and next evening found him with Yvette and Jules at a small hotel near the Gare du Nord. After a cordial greeting Yvette, as usual, plunged direct into the business in hand.

“Now, Dick,” she said, “our last adventure was quite a success. Are you good for something more exciting and decidedly more dangerous? Or,” she added mischievously, “is Norfolk and the motor business exciting and dangerous enough for you?”

Dick laughed.

“To tell the truth,” he replied, smiling, “I’m about fed up with both of them. You can count me in on anything short of murder.”

“I hope it won’t come to that,” was Yvette’s rejoinder, “but I admit you may find your automatic pistol useful, perhaps indispensable. But let me explain. You English don’t take much interest in foreign politics, and perhaps you haven’t—in Norfolk—paid much attention to Galdavia.”