Any description of the Eye had to begin by mentioning that it was the largest object ever made. Most of its material had come from Cleft. It was, in a sense, the thing Cleft had ultimately shape-shifted into. Its innermost piece was a spinning, ring-shaped city of sufficient diameter—some fifty kilometers—that even the largest space habitats could pass through its center with plenty of room to spare. This made the Eye capable of sweeping all the way around the ring, encompassing in turn each of the ten thousand separate habitats.