At very nearly the same moment as the man who had called himself Dr. Wilmot had leaped from the library window of Deringham Hall, Mr. Sabin sat alone in his sanctum waiting for a visitor. The room was quite a small one on the ground floor of the house, but was furnished with taste and evident originality in the Moorish fashion. Mr. Sabin himself was ensconced in an easy chair drawn close up to the fire, and a thin cloud of blue smoke was stealing up from a thick, Egyptian cigarette which was burning away between his fingers. His head was resting upon the delicate fingers of his left hand, his dark eyes were fixed upon the flaming coals. He was deep in thought. "A single mistake now," he murmured softly, "and farewell to the labour of years. A single false step, and goodbye to all our dreams! To-night will decide it! In a few minutes I must say Yes or No to Knigenstein. I think--I am almost sure I shall say Yes! Bah!" The frown on his forehead grew more marked. The cigarette burned on between his fingers, and a long grey ash fell to the floor. He was permitting himself the luxury of deep thought. All his life he had been a schemer; a builder of mighty plans, a great power in the destinies of great people. To-night he knew that he had reached the crisis of a career, in many respects marvellous. To-night he would take the first of those few final steps on to the desire of his life. It only rested with him to cast the die. He must make the decision and abide by it. His own life's ambition and the destinies of a mighty nation hung in the balance. Had he made up his mind which way to turn the scale? Scarcely even yet! There were so many things! He sat up with a start. There was a knock at the door. He caught up the evening paper, and the cigarette smoke circled about his head. He stirred a cup of coffee by his side. The hard lines in his face had all relaxed. There was no longer any anxiety. He looked up and greeted pleasantly--with a certain deference, too--the visitor who was being ushered in. He had no appearance of having been engaged in anything more than a casual study of the _St. James's Gazette_. "A gentleman, sir," the stolid-looking servant had announced briefly. No name had been mentioned. Mr. Sabin, when he rose and held out his hand, did not address his visitor directly. He was a tall, stout man, with an iron-grey moustache and the remains of a military bearing. When the servant had withdrawn and the two men were alone, he unbuttoned his overcoat. Underneath he wore a foreign uniform, ablaze with orders. Mr. Sabin glanced at them and smiled. "You are going to Arlington Street," he remarked. The other man nodded. "When I leave here," he said. Then there was a short silence. Each man seemed to be waiting for the other to open the negotiations. Eventually it was Mr. Sabin who did so. "I have been carefully through the file of papers you sent me," he remarked. "Yes!"