““A year ago astronomers across the Discworld had been puzzled to see the stars gently wheel across the sky as the world-turtle executed a roll. The thickness of the world never allowed them to see why, but Great A’Tuin’s ancient head had snaked out and down and had snapped right out of the sky the speeding asteroid that would, had it hit, have meant that no one would ever have needed to buy a diary ever again.””
