Cerberus is the most exciting thing to happen down here.” Gradus looked so pleased with himself. “We hope he will trample us. We beg him to maul us.” “Why?” “Because it’s interesting,” said Gradus. “Pain is interesting, and you can bear anything as long as it’s interesting.” “But how—” “It’s all just sensations in the end, Alice Law. Pain or pleasure, mirror images of each other. And both preferable to dead time. Time crawls here. You do anything to feel.”