ell," said David Shelton. "Well! Looks as if you're right, young man. I'm astonished." His watery eyes looked sheepishly over the rims of his glasses.

Lina watched their every move. She seemed to sense the seriousness of the situation far more than did her father.

Then the lights went out. It had darkened to night outside and the blackness and silence in the laboratory was like that of a tomb.

"They've cut the wires," Eddie whispered hoarsely. "Got any weapons here, Shelton?"

"Yes. A couple of automatics. I'll get them." The scientist was no coward, anyway. His whispered words came calmly through the silence.

Eddie heard him shuffle a few steps and fumble with a drawer of the desk. In a moment the cold hard butt of a pistol was thrust into his hand. It had a comforting feel.

"Stay here with Lina," he commanded. "I'll go out and see if I can find them. This looks nasty to me."

"No," came the girl's voice, "I'm going too."

"You are not," Eddie hissed. "You'll stay here or I'll know the reason. It's dark as a pocket outside and my eyes are as good as theirs. I'll get 'em if they're around here. You hear me?"

"Yes," she whispered meekly.