"The Baron von Knigenstein has been there alone, incognito, for more than an hour. I watched him go in--and watched him out." The Prince's genial smile vanished. His face grew suddenly as dark as thunder. The Muscovite crept out unawares. There was a fierce light in his eyes, and his face was like the face of a wolf; yet his voice when he spoke was low. "So ho!" he said softly. "Mr. Sabin is doing a little flirting, is he? Ah!" "I believe," the young man answered slowly, "that he has advanced still further than that. The Baron was there for an hour. He came out walking like a young man. He was in a state of great excitement." The Prince sat down and stroked the side of his face thoughtfully. "The great elephant!" he muttered. "Fancy such a creature calling himself a diplomatist! It is well, Felix," he added, "that I had finished my dinner, otherwise you would certainly have spoilt it. If they have met like this, there is no end to the possibilities of it. I must see Sabin immediately. It ought to be easy to make him understand that I am not to be trifled with. Find out where he is to-night, Felix; I must follow him." Felix took up his hat. "I will be back," he said, "in half an hour." The Prince returned to his guests, and Felix drove off. When he returned his chief was waiting for him alone. "Mr. Sabin," Felix announced, "left town half an hour ago." "For abroad!" the Prince exclaimed, with flashing eyes. "He has gone to Germany!" Felix shook his head. "On the contrary," he said; "he has gone down into Norfolk to play golf." "Into Norfolk to play golf!" the Prince repeated in a tone of scornful wonder. "Did you believe a story like that, Felix? Rubbish!" Felix smiled slightly. "It is quite true," he said. "Labanoff makes no mistakes, and he saw him come out of his house, take his ticket at King's Cross, and actually leave the station." "Are you sure that it is not a blind?" the Prince asked incredulously. Felix shook his head. "It is quite true, your Excellency," he said. "If you knew the man as well as I do, you would not be surprised. He is indeed a very extraordinary person--he does these sort of things. Besides, he wants to keep out of the way." The Prince's face darkened. "He will find my way a little hard to get out of," he said fiercely. "Go and get some dinner, Felix, and then try and find out whether Knigenstein has any notion of leaving England. He will not trust a matter like this to correspondence. Stay--I know how to manage it. I will write and ask him to dine here next week. You shall take the invitation." "He will be at Arlington Street," Felix remarked. "Well, you can take it on to him there," the Prince directed. "Go first to his house and ask for his whereabouts. They will tell you Arlington Street. You will not know, of course, the contents of the letter you carry; your instructions were simply to deliver it and get an answer. Good! you will do that."