"By all means," I agreed. There was nothing else to do.

"Come on, you fellows," he called, looking out into the corridor. "Plenty of room here."

I stiffened as I caught a glimpse of one of his companions. He was a man named Freibach who had been at Göttingen with me, and both Nessa and I had known him in London before the war. I tried to warn Nessa, but it was useless; and her start as she saw him was enough to give everything away.

Would he recognize us? If he did—what?

A minute settled it and judgment went dead against us. He knew us both.

"Hullo! This is a surprise if you like. How do you do, Miss Caldicott, and you too, Lancaster?" he exclaimed in English, and after shaking hands with Nessa held out his hand to me.

CHAPTER XXII

CHECKMATE

I'm not a particularly blood-thirsty person, but considering the hosts of Freibach's countrymen who had fallen in the war, I certainly did bitterly regret that he had been spared.