Trent was dashing forward toward the stairs as the dog's body flew through the air. He saw the flashing jaws of the animal snap at the throat of the monster, as its heavy body smashed against it.

Then the arms of the creature were tearing at the dog as it was forced back into the rocket chamber.

Trent's feet flew up the stairs, his breath a tortured gasp in his throat. He saw the girl stir on the platform, as consciousness returned to her.

"Joan!"

Her name sped from his lips as he reached the top step. Then his hands closed around the girl's shoulders, lifting her to her feet.

The snarl of the Great Dane reached his ears from the rocket chamber, and the answering roar of rage from the monster as they fought. His eyes saw the vague, terrible shadows of them, heard the snapping jaws of the dog, and the raking claws.

And then he was dragging the girl down the steps.

They reached the ground and Trent pulled her away from the rocket, felt her come to life in his arms, heard the sob on her lips.

But his head turned away from her and he stared anxiously up at the open rocket chamber.

He heard the bodies of the monster and the dog slam against the inner side of the chamber, and then he saw the door of the rocket close. He knew that the automatic mechanism must have been touched in the battle.