In the engine room Beta labored. The hoses were sucking at the fluid. The hoses were there actually to suck away the gaseous waste of the engines. Now they were sucking away the fuel with thirsty, slurping sounds, pouring it out onto the soil outside the tower.

The fuel was sinking slowly, drawing away from the sparks in the engines. The girl was nowhere around. Near the fat legs bracing the engines from the floor, the transparent sphere of a space helmet swirled and rocked with the motion of the fuel. It was the only proof that the girl had ever existed; the sole thing about her that had been real.

Beta watched the hoses and studied the transparent sphere that was floating towards him, drawn by the suction of the wide mouths of the hoses.

"You were a great girl, Katherine," he said. He sighed. He felt weariness growing inside of him.

The fuel coming down the steps into the engine room was a mere trickle. The tanks above were drained. The level of the fluid was dropping down towards his ankles.

Beta walked carefully through the fuel to the steps. He looked back, watching the hoses. Confident that they could do the job, he mounted the stairs and reached the long corridor to the rubble-blocked doorway. He left wet, oily prints behind him as he walked. He entered the radio communication room.

The dials of the radio glowed warmly before him. He adjusted the frequency to that of the ship of Miss Kanton.

He helloed for five minutes before Miss Kanton's voice came in answer. He told her that everything was all right. She sobbed for a long time. Then she told him that he was the real one. He felt a faint qualm of belated fear that was over-ridden by his weariness.

"You are a great girl, Katherine," he said. "You hung onto the hose, burning, wrapping yourself around it so that you wouldn't fall into the fuel. It's one of the greatest things I've seen. You smiled when you were disappearing. You knew that everything was all right then."

The girl on the radio was still sobbing. He told her to land. He walked out of the room into the corridor and pushed his way through the hole above the rubble pile. He saw that the Diggers were still racing around on the horizon.