The minute he saw Old King Brady, without waiting to finish the game, he pushed the dominoes aside and made a sign for the old detective to follow, then leading him upstairs. "I'm living here just now," he said. "I don't know as you know it." "No; I didn't know," was the reply. "Have you caught on to anything?" "I think so. Volckman's a sly one, but I have had a good chance to watch him. He quit an hour earlier than usual to-night. So did I, and I trailed him to China alley and saw him go into a crib there." "Good for you! What kind of a crib?" "Oh, there is supposed to be about everything that is crooked going on there. Mock Ting's restaurant is on the ground floor of the Dupont street side. There's a fan-tan joint on the third floor. I understand there are underground rooms. I don't actually know any of them to be opium joints, but I have no doubt that some of them are." "It's enough that you have tracked Volckman there. What do you propose?" "It's up to you, Mr. Brady. I have no pull in Chinatown. That is what we want." "It surely is. I used to have a lot, but times have changed. I hardly know who to apply to now. I hate to ring in a wardman." "I wouldn't," said Leggett, with a shrug of his shoulders. "I don't believe it would pay. I'm ready to bust ahead with you and take our chances." "I have little faith in that, either. Volckman doesn't look like a man who used opium. He must have had special business to call him there. But let us get down there, anyway." This conversation took place in Leggett's room upstairs. "Better drop this rig, hadn't I?" he asked. "I think so." "If we only had some one who could speak Chinese." "Get ready," said the old detective, impatiently. "We'll go ahead and do the best we can." It was about six o'clock when they reached the House of the Seven Delights. "We'll take supper in the restaurant as a starter," said Old King Brady. "It is not impossible that I may strike somebody I know." They entered to find the place reasonably full. The old detective picked out a central table, from which they could see in all directions. Supper was ordered, and they had almost finished when Old King Brady suddenly said: "There's a man I know. Just sitting at the third table on the left as you come in from the door." Leggett looked. "A Jap, isn't he?" "Half Japanese and half Chinese. Don't you know him?" "No." "You will be surprised, then, when I tell you that he was once a Secret Service man." "Is that so? He never operated in San Francisco in my time, then. What's his name?" "Dr. Garshaski." "Is he really a doctor?" "Yes. I certainly ought to know him. He made me trouble enough. I don't like this. I thought the man was in China." An inkling of the truth dawned upon Old King Brady. The sight of Dr. Garshaski had stirred him more than he would have cared to own. "If Alice fell into the clutches of that fellow, then heaven help her!" he thought.