Herr Werner, badly sunburned and dusty, seemed unfeignedly glad to have reached the ranch. He greeted Elsa and Charley effusively, shook hands with Dick and showed Roger a mixture of cordiality and deference in manner that was irreproachable.

Left alone in the living room with Roger and Ernest, he came to the point at once:

"Wolf tells me, Mr. Moore, that you have been much angered at his selling the solar device to me."

"I certainly have been and I haven't the least idea of letting the thing go through," replied Roger. "A considerable part of the money you advanced has been spent but I shall spend no more of it and my friend Preble can arrange a loan that will cover what has been spent."

"You know, of course," Werner took an audible sip of lemonade, "that a bargain is a bargain and that the contract Wolf signed is binding."

"Ordinarily, yes," said Roger, "but I have an idea that before I'm through with you, you'll be glad to let go."

"For heaven's sake, Roger!" cried Ernest irritably, throwing his cigarette in the fireplace, and taking a quick turn up and down the room, "don't start a row."

"If you mean not to lose my temper, I can promise that," returned Roger, "but Germany can never have my solar apparatus."

"How're you going to help yourself?" asked Ernest, with an ugly edge to his voice.

"There are ways! Mr. Werner, Von Minden was a part of Germany's great system, was he not, for exploiting America? He was one of your agents and his job was to outline the desert empire Germany plans to take over. But being German, like Ernest's father who never will take the human element into consideration, you didn't count on the desert's sending your poor tool crazy, so he blabbed. Gustav is your watch-dog and spy, keeping you in touch at present with all my doings. Your own activities, outside of these minor ones, I imagine, center round the banking and educational interests of America. You've seen to it that our high schools and universities produce students that admire Germany. I must say that you have been highly successful up to now. But the superman stuff is a bit thick, Mr. Werner. It makes our American gorge rise in our throats."