Overhead was distance. I could not call it a sky. A blur was there—something almost but not quite distinguishable. Then I thought that I could make out a more solid blur which might be the lower lens of the microscope above us. And there were blurred, very distant spots of light, like huge suns masked by a haze, and I knew that they were the hooded lights of the laboratory room.


efore us, over the brink of a five hundred-foot cliff, a great glistening white plain stretched into the distance. I seemed to see where it ended in a murky blur. And far higher than our own hilltop level a horizontal streak marked the rope railing of the slab.

"Well," said Alan, "we're here." He gazed behind us, back across the rocky summit which seemed several hundred feet across to its opposite brink. He was smiling, but the smile faded. "Now what, Glora? Another pellet?"

"No. Not yet. There is a place where we go down. It is marked in my mind."

I had a sudden ominous sense that we three were not alone up here. Glora led us back from the cliff. As we picked our way among the naked crags, it seemed behind each of them an enemy might be lurking.

"Glora, do you know if any of Dr. Polter's men have the drug? I mean, do they come in and out here?"

She shook her head. "I think not. He lets no one have the drug. He trusts not any one. I stole it; I will tell you later. Much I have to tell you before we arrive."

Alan made a sudden sidewise leap, and dashed around a rock. He came back to us, smiling ruefully.