They all watched. And they all saw the amoeba stop, hesitate for a moment--and come straight for the wrecked borer behind which they were hidden.
"Damn!" Phil whispered hoarsely. "It's still hungry--and it's after us!"
David Guinness sighed wearily. "It's heavy and sluggish, now," he said, "so maybe if we run again.... Though I don't know how I can last any longer...."
Holmes did not answer. His eyes were narrowed; he was casting about desperately for a plan. He hardly felt Sue's light touch on his arm as she whispered:
"In case, Phil--in case.... This must be good-by...."
But the young man turned to her with gleaming eyes. "Good-by, nothing!" he cried. "We've still got a card to play!"
She stared at him, wondering if he had cracked from the strain of what he had passed through. But his next words assured her he had not. "Go back, Sue," he said levelly. "Go far back. We'll win through this yet."
She hesitated, then obeyed. She crept back from the wrecked borer, back into the dim rear, eyes on Phil and the sluggish mass that moved inexorably towards him. When she had gone fifteen or twenty yards she paused, and watched the two men anxiously.
Phil was talking swiftly to Professor Guinness. His voice was low and level, and though she could not hear the words she could catch the tone of assurance that ran through them. She saw her father nod his head, and he seemed to make the gesture with vigor. "I will," she heard him say; and he slapped Phil on the back, adding: "But for God's sake, be careful!"
And with these words the old man wormed inside Quade's wrecked borer and was gone from the girl's sight.
She wanted desperately to run forward and learn what Phil intended to do, but she restrained herself and obeyed his order. She waited, and watched; and saw the young man stand up, look at the slowly advancing monster--and deliberately walk right into its path!
Sue could not move from her fright. In a daze she saw Phil advance cautiously towards the amoeba and pause when within five feet of it. The thing stopped; remained absolutely motionless. She saw him take another short step forward. This time a pseudopod emerged, and reached slowly out for him. Phil avoided it easily, but by so narrow a margin that the girl's heart stopped beating. Then she saw him step back; and, snail-like, the creature followed, pausing twice, as if wary and suspicious. Slowly Phil Holmes drew it after him.