"No! Is he alive?"

"Yes, yes. But he may never speak again. He lay there in the street for hours and hours. Dr. Gesner's internes are here—"

"Oh, not being able to talk would be worse for him than dying. I'll come! I'll be right there!" Miss Knox dropped the receiver and swung out of bed, feeling in the darkness for her robe. She pulled it on and opened the door, and found her slippers in the faint yellow light from the hallway.

As she ran, knotting the belt of her robe, she looked up and down the ancient residential corridors for a motorbed. She stumbled against a rotten wood molding. She pressed the elevator button and turned, her loose hair swinging heavily, to face the flat eye of a clock. It was five-fifteen.

Overhead, the floor indicator creaked around its dial—seven, six, five, four—and the doors opened. There was a motorbed on the elevator.

She stepped inside and pressed the button for seven, the lowest floor with a bridge to the Mushroom. The doors shut and the car moved upward. Tripping over the torn linoleum, she managed to fall backward onto the bed's driving seat. She swung her legs around and turned on the switch.

As the doors opened, she drove out with a jolt and entered the sparkling newness of a tubular bridge which rose through the night across First Avenue. The Mushroom towered overhead, its spiral corridors glowing. Night traffic vibrated beneath her as she crossed—a crowd of trucks was baying north along the hidden cobblestones, following traffic lights which jumped from red to green, one after another, like an electronic rabbit. The trucks passed out of sight under their own diesel cloud and another pack approached in a higher key....