I lowered the gun hesitantly, letting it waver in the general direction from which the voice came. It was a strange introduction, but the possessor of the voice must have been as frightened by my bursting suddenly into the cave as I had been on finding it already occupied.
"What are you doing here?" I asked.
"That's supposed to be my question," said Mister J. J. Abrogado. "Who are you? And what was it that frightened you?"
"Sorry," I apologized. "My name's Ross. I'm an archeologist. I was on a trip alone in my ground car when it broke down. Being no mechanic, I couldn't fix it. I decided to walk back to Marsport. I walked all day and most of this night, when—Well, listen!"
I bent my head to one side. Through the earphones of my headwarmer I could hear from far away a vague presentiment of movement, a dim blur upon the horizon of sound.
"The nightrunners," said Abrogado in recognition. "I thought it might have been something else that frightened you." There was an unspoken question in his silence.
"What?" I asked, wondering.
The cave was like a bottle of blackness. I could see nothing of my companion, not even his head and shoulders which must have been thrust rather sharply forward.
"The Nobles," said the prospector. "I thought perhaps you had seen a Noble."
The presentiment of movement had become a distant murmur, and my hand against the cave wall could detect a soft, smooth trembling.