The sign on the door stood out as he came near and disappeared as he went by. MEMORY LAB, that was all--no other name, even here. Naturally. A false name would be occasion for police action. The right one would evoke Luise's and his own memories. He turned back and went into the waiting room. No robot receptionist. He expected that; the man didn't intend to be around very long. "Who's there?" The voice came from a speaker in the wall; the screen beside it remained blank, though obviously the man was in the next room. For a commercial establishment, the LAB was not considerate of potential clients. Luis smiled sourly and loosened the weapon in his pocket. "I saw your advertisement," he said. No name; let him guess. "I'm very busy. Can you come back tomorrow?" Luis frowned. This was not according to plan. First, he didn't recognize the voice, though the speaker could account for that if it were intentionally distorted. Second, Luise was inside and he had to protect her. He could break in, but he preferred that the man come out. He thought swiftly. "I'm Chals Putsyn, gallium importer," he called. "Tomorrow I'll be away on business. Can you give me an appointment for another time?" There was a long silence. "Wait. I'll be out." He'd _thought_ the mention of gallium would do it. True, the mine Starret owned was probably worthless, but he couldn't restrain his curiosity. * * * * * The door swung open and a man stepped out, closing the door before Luis could see inside. He had erred--the man was not Dorn Starret. The other eyed him keenly. "Mr. Chals Putsyn? Please sit down." Luis did so slowly, giving himself time to complete a mental inventory. The man _had_ to be Dorn Starret--and yet he wasn't. No disguise could be that effective. At least three inches shorter; the shape of his head was different; his body was slighter. Moreover, he was right-handed, not left, as Starret was. Luis had a story ready--names, dates, and circumstances. It sounded authentic even to himself. The man listened impatiently. "I may not be able to help you," he said, interrupting. "Oddly enough, light cases are hardest. It's the serious memory blocks that I specialize in." There was something strange about his eyes--his voice too. "However, if you can come back in two days, late in the afternoon, I'll see what I can do." Luis took the appointment card and found himself firmly ushered to the door. It was disturbing; Luise was in the next room, but the man gave him no opportunity to see her. He stood uncertainly in the hall. The whole interview had taken only a few minutes, and during that time all his previous ideas had been upset. If the man was not Dorn Starret, who was he and what was his connection? The criminal from Ceres was not so foolish as to attempt to solve his problems by assigning them to another person. This was a one-man job from beginning to end, or ought to be.