"That will help," Graham said to Bobby when they were in the car again. "The reporters will find Maria quicker than any detective I can put my hand on. My man evidently fell down because she had gone before I got him on the case." At his office they learned that was the fact. The private detective had been able to get no slightest clue as to Maria's whereabouts. Moreover, Bobby's description of the stranger who had entered the cafe with her merely suggested a type familiar to the Tenderloin. For purposes of identification it was worthless. Always followed by the car from Smithtown, they went to the hotel where Paredes had lived, to a number of his haunts. Bobby talked with men who knew him, but he learned nothing. Paredes's friends had had no word since the man's departure for the Cedars the day before. So they turned their backs on the city, elated by the significance of Maria's absence, yet worried by the search and the watchful car which never lost sight of them. When they were in the country Graham sighed his relief. "You haven't been stopped. Therefore, nothing was found at your apartment, but if that wasn't planted why should Maria have sent an incriminating note there?" "Unless," Bobby answered, "she told the truth. Unless she was sincere when she mailed it. Unless she learned something important between the time she wrote it and her disappearance from her home." "Frankly, Bobby," Graham said, "the note and the circumstances under which it came to you are as damaging as the footprints and the handkerchief, but it doesn't tell us how any human being could have entered that room to commit the murders and disturb the bodies. At least we've got one physical fact, and I'm going to work on that." "If it is Maria prowling around the Cedars," Bobby said, "she's amazingly slippery, and with Paredes gone what are you going to do with your physical fact? And how does it explain the friendly influence that wiped out my footprints? Is it a friendly or an evil influence that snatched away the evidence and that keeps it secreted?" "We'll see," Graham said. "I'm going after a flesh-and-blood criminal who isn't you. I'm going to try to find out what your grandfather was afraid of the night of his murder." After a time he glanced up. "You've known Paredes for a long time, Bobby, but I don't think you've ever told me how you met him." "A couple of years ago I should think," Bobby answered. "Somebody brought him to the club. I've forgotten who. Carlos was working for a big Panama importing firm. He was trying to interest this chap in the New York end. I saw him off and on after that and got to like him for his quiet manner and a queer, dry wit he had in those days. Two or three months ago he--he seemed to fit into my humour, and we became pretty chummy as you know. Even after last night I hate to believe he's my enemy."