Wassily Kandinsky Red Spot II

Spring had come to Ankh-Morpork. It wasn't immediately apparent, but there were signs that were obvious to the cognoscenti. For example, the scum on the river Ankh, that great wide slow waterway that served the double city as that lined the rooftops, much to the gargoyles' disappointment.
A kind of spring had even come to the ancient University itself. Tonight would be the Eve of Small Gods, and a new Archchancellor would be elected.
Well, not exactly elected, because wizards didn't have any truck with all this undignified voting business, and it was well known that Archchancellors were selected by the will of the gods, and this year it was a pretty good bet that the gods would see their way clear to reservoir, sewer and frequent morgue, had turned a particularly iridescent green. The city's drunken rooftops sprouted mattresses and bolsters as the winter bedding was put out to air in the weak sunshine, and in the depths of musty cellars the beams twisted and groaned when their dry sap responded to the ancient call of root and forest. Birds nested among the gutters and eaves of Unseen University, although it was noticeable that however great the pressure on the nesting sites they never, ever, made nests in the invitingly open mouths of the gargoyles