Read "Advance Agent" by Christopher Anvil online for free on Textopian. Full text with search, annotations, highlights, and AI-powered reading aids.
Carefully avoiding brass plates, Dan made his way along an avenue of shops devoted to exercise and physical fitness. He came to Runfast Blvd. and located 6140, which looked like the apartment houses he had seen earlier.
He tried the outer door; it was locked. When someone came out, Dan caught the door and stepped in. As the door shut, he tried it and found it was locked again. He stood for a moment trying to understand it, but his sleeplessness of the night before was catching up with him. He gave up and went inside.