"We are in the dark places of the earth," said Madman. "Where all the ancient and most dangerous secrets are kept. There are Old Things down here, sleeping all around us, in the earth and in the living rock, and in the spaces between spaces. Keep your voices down. Some of these old creatures sleep but lightly, and even their dreams can have force and substance in our limited world. We have come among forgotten gods and sleeping devils, from the days before the world settled down and declared itself sane."