The Plugger couldn't expand completely into Casker's room!

Or could it?

The wedge-shaped rooms, each a segment of a circle, seemed to stretch before him forever, a jumbled montage of locked doors, alien goods, more doors, more goods. Hellman fell over a crate, got to his feet and fell again. He had reached the limit of his strength, and passed it. But Casker was his friend.

Besides, without a pilot, he'd never get off the place.

Hellman struggled through two more rooms on trembling legs and then collapsed in front of a third.

"Is that you, Hellman?" he heard Casker ask, from the other side of the door.

"You all right?" Hellman managed to gasp.

"Haven't much room in here," Casker said, "but the Plugger's stopped growing. Hellman, get me out of here!"