I'll go back to the apartment and call Dr. Clive, thought Ellen. She had the feeling, no doubt held over from the days of measles and mumps, that a doctor could cure anything, even green monsters on the brain. She drank the last of the coffee and fished in her coin purse for change. Picking up the check, she walked over to the cash register at the end of the counter, facing the street. The untidy waitress came from the back of the restaurant to take the money. Ellen looked out at the street through the glass front. The man from 410 was standing out there, smoking a cigarette, watching her. When their eyes met, he abruptly threw away the cigarette and started walking toward the apartment house. Again she felt that faint dread she had experienced in the hall earlier. The waitress picked up her quarter, gave her back a nickel and a dime. Ellen put the change into her purse, got out her key chain and held it in her hand while she walked quickly next door. 410 was just ahead of her in the lobby; he held the front door open for her. She kept her head down, not looking at his face, and they walked, Indian file, across the lobby to the elevator. He opened the elevator doors, too, and she stepped in ahead of him. * * * * * When the doors clanged shut, she had a feeling of panic. Alone with him ... cut off from help. He didn't pretend not to know her floor, but silently pressed the proper button. While the car moved slowly upward, her heart was beating wildly. I'm not convinced, she thought, I'm not convinced. I saw it so plainly ... I felt it, cold in my hands. The elevator stopped. The man held the door open and for a moment she thought he was going to say something. His free hand made a swift, involuntary movement as though he were going to catch her arm. She shrank away, but he stepped back and let her through. Ellen almost ran down the hall. Behind her, she heard his footsteps going in the opposite direction toward his apartment. She was panting when she reached her door. She fumbled for the right key--front door, office--and then she froze. There was a scratching sound in the apartment. She put her ear close to the door, listened. There was a rasping noise, like somebody dragging a rake ... or like claws, great heavy claws, moving over the hardwood floors! Ellen backed away from the door. It was true, then. She retreated, inch by inch, silently. Get away, leave before it catches you! She turned, ready to make a dash for the elevator ... and faced the man from 410. Down at the end of the hall, in front of his apartment, he was watching her. The way he lingered outside the restaurant, the way he looked at her. One of _them_ ... maybe underneath that homely, ordinary face, his skin was green and clammy. Maybe there were long, sharp claws on his feet.