"Alan—come—I can't get out alone. Nor save Babs. And the maddened Polter, with the power of this drug, can conquer and enslave our Earth as he has enslaved Orena—just one little city of one tiny golden atom! Believe me, lad, your duty lies above."

Glora's head was now down at Alan's waist. He stooped and kissed her white forehead; his fingers, just for an instant, smoothed her glossy hair.

"Good-by, Glora."

"Dear one, good-by."

She plunged away, and her tread as she dwindled mashed the forest behind the city. Alan and his father ran for the cliff. They were too large to squeeze into the little hole. But in a moment they made themselves smaller. They climbed as they dwindled; checked the drug action and rushed into the tunnel-mouth.

Alan stopped just for an instant to gaze out over the starlit scene. It was almost the same viewpoint from which he had his first sight of Glora's world only an hour or two before. The distant island beyond the city showed plainly with the shining water around it. The vegetation there was growing! And there were dark, horribly formless blobs lurching outward and rising with monstrous bulk against the background of the stars!

"Alan! Come, lad!"

With a prayer for Glora trembling on his lips, Alan plunged into the dim phosphorescent gloom of the tunnel.

CHAPTER X

The Escape