"The first Dying Earth sold three billion copies," I said. "Pilgrim's Progress," she said. "Mein Kampf. Once in a century. Maybe less." "But it sold three billion ..." "Look," said Tyrena. "In twentieth-century Old Earth, a fast food chain took dead cow meat, fried it in grease, added carcinogens, wrapped it in petroleum-based foam, and sold nine hundred billion units. Human beings. Go figure."