Template:Hwe profundity. And then our guide was pulling at my arm.
Then he left me, and walked to the end of that plank and stepped upon it, looking back. Then when he perceived we watched him, he turned about and went on along it, walking as surely as though he was on firm earth. For a moment his form was distinct, then he became a blue blur, and then vanished into the obscurity. I became aware of some vague shape looming darkly out of the black.
There was a pause. "Surely—!" said Cavor.
One of the other Selenites walked a few paces out upon the plank, and turned and looked back at us unconcernedly. The others stood ready to follow after us. Our guide's expectant figure reappeared. He was returning to see why we had not advanced.
"What is that beyond there?" I asked.
"I can't see."
"We can't cross this at any price," said I.
"I could not go three steps on it," said Cavor, "even with my hands free."
We looked at each other's drawn faces in blank consternation.
"They can't know what it is to be giddy!" said Cavor.