At that very minute a knock sounded at the door, and mechanically consulting my watch, I saw that it was already nearly midnight. I had no reason to expect a visitor at that hour, and I stood listening in silence, while Hinge answered the summons at the door. There was a murmur of voices outside, and when I looked at Brunow I saw him start suddenly forward as if in the act to rise. For a second or two he set in an attitude of enforced attention, leaning forward with a hand on either arm of the chair, as if prepared to spring to his feet; but observing that my eye was upon him, he sank back again and began to smoke once more. This time nothing but the rapidity with which he puffed at his cigar was left to indicate his discomposure.

Hinge rapped at the door, and when I bade him enter, came in followed by a stranger, whose aspect was simply and purely business-like. This man bowed to me and then to Brunow, and receiving no response from either of us, stood for a moment as if embarrassed.

“Captain Fyffe, I believe?” he said, rather awkwardly.

“That is my name,” I answered. “What is your business?”

“I beg pardon for coming here, sir,” he responded, “but I have been waiting all night to find the Honorable Mr. Brunow, and I have only just heard that he was here. Can I have a word with you, sir?” He turned to Brunow as he spoke. “Sorry to trouble you, sir, but you remember what you promised me. I took your word of honor, sir, and I've made myself personally responsible.”

“Damn it all!” cried Brunow, rising, with a whiter face than ever; “do you suppose that a gentleman is to be badgered about a thing of this kind at this hour of the night in another gentleman's rooms? Wait outside. Go down-stairs and wait for me, and I will arrange with you when we go home together.”

“Very well, sir,” the man replied. He was perfectly respectful, though there was an underlying threat in his manner. “I'll do as you wish. But I hope you understand—”

“I understand everything!” cried Brunow, with an imperious wave of the arm. “Do as you are told!”

“Hinge,” I said, seeing a sudden light upon the complication of affairs which lay before me, “Mr. Brunow and I have business with each other which may detain us for some little time. This person can wait in your room until Mr. Brunow is at liberty.”

“I beg your pardon, sir,” the man responded, “I've spent a good deal of time about this business already, and it's getting late. I shall be glad to know when I may expect to be able to talk to Mr. Brunow.”