I saw only the bare rounded sides of a small shaftlike tunnel and I laughed nervously. My imagination was running riot; I could have sworn that hideous yellow eyes glared terribly at me from the darkness, and that a crawling something had scuttered away down the tunnel. I was foolish to let these imaginings upset me. The Children had long vanished from these caverns; a nameless and abhorrent race closer to the serpent than the man, they had centuries ago faded back into the oblivion from which they had crawled in the black dawn ages of the Earth.