"My mission, Professor, is a somewhat curious one"; and I went on to explain our fears that German secret agents might obtain knowledge of the new process to which he had referred at the London Institution on the previous night.

For a moment he stroked his pointed white beard thoughtfully. I detected that he was as eccentric as he was curious-looking. Then, with a light laugh, he replied:

"Really Mr.—Mr. Jacox, I can't see your motive, or that of your friends, in thus interfering in my private affairs!"

"But is not this splendid discovery of yours of national importance?" I protested. "Will it not give us an enormous advantage over our enemies? Therefore, is it not more than probable that you have already attracted the attention of these spies of Germany?"

"My dear sir," he laughed, "I tell you quite frankly that I don't believe in all these stories about German spies. What is there in England for Germany to discover? Nothing; they know everything. No, Mr. Jacox, I'm an Englishman, a patriot, and I still believe in England's power. We have nothing whatever to fear from Germany."

"Your theory is hardly borne out by facts, Professor," I said, proceeding to tell him of our discovery at Rosyth, and how we had outwitted the spies regarding the new submarine, and also the airship at Lochindorb.

But the strange-looking old scientist, distinguished as he was, only laughed my fears to scorn.

"I'd like to see any German trying to learn my secret," he said defiantly.

"Then I would urge you to take every precaution. These agents employed by the German Secret Police on behalf of the General Staff are bold and unscrupulous."

"And do you allege that there are actually German spies in England?" asked the strange man.