The Cathedral is like a low-bellied lizard, the nave its belly, the buttresses its legs. There are little houses at the base of each buttress, where rainspouters with dragon faces used to lean out over the trees (or city or whatever was down below once). Now people live there. It wasn’t always that way—the sun was once forbidden. Corvus and Constantia from childhood were denied its light, and so even in their youthful prime they were pale and dirty with the smoke of candles and tallow lamps. The most sun anyone received in those days was obtained on wood-gathering expeditions.