"I will do it," he said, with a bitter sigh.

"On your word of honour, Colonel Katona?"

"Yes. On my word of honour. God help me."

I drew a deep breath of relief. I needed no further assurance. I had seen enough to know that what I still had to tell him—that Gustav was the man he sought—would suffice to change any lingering remnant of indecision into grim set purpose.

I told him I would send him word on the following morning where he and Count Karl were to come to me at about noon.

"You will give me your hand, Christabel?" he asked, hesitating, as we were parting.

"Yes. I trust you now to undo the past."

He held my hand a moment and seemed much affected.

"I had meant to speak to you about Count Karl. He——"

"Please!" I broke in.