stonework. And screamed.
The building was shuddering. He could feel it come up through his hand and along his arms, a faint rhythmic sensation at just the right frequency to suggest uncontrollable terror. The stones themselves were frightened.
He looked down in horror at a faint clinking noise. An ornamental drain cover fell backwards and one of the Universityâs rats poked its whiskers out. It gave Rincewind a desperate look as it scrambled up and fled past him, followed by dozens of its tribe. Some of them were wearing clothes but that wasnât unusual for the University, where the high level of background magic does strange things to genes.
As he stared around him Rincewind could see other streams of grey bodies leaving the University by every drainpipe and flowing towards the outside wall. The ivy by his ear rustled and a group of rats made a series of death-defying leaps on to his shoulders and slid down his robe. They otherwise ignored him totally but, again, this wasnât particularly unusual. Most creatures ignored Rincewind.
He turned and fled into the University, skirts flapping around his knees, until he reached the bursarâs study. He hammered on the door, which creaked open.
âAh. Itâs, um, Rincewind, isnât it?â said the bursar, without much enthusiasm. âWhatâs the matter?â
âWeâre sinking!â
The bursar stared at him for a few moments. His name was Spelter. He was tall and wiry and looked as though he had been a horse in previous lives and had only just avoided it in this one. He always gave people the impression that he was looking at them with his teeth.
âSinking?â
âYes. All the rats are leaving!â
The bursar gave him another stare.
âCome inside, Rincewind,â he said, kindly. Rincewind followed him into the low, dark room and across to the window. It looked out over the gardens to the river, oozing peacefully towards the sea.
âYou havenât been, um, overdoing it?â said the bursar.
âOverdoing what?â said Rincewind, guiltily.
âThis is a building, you see,â said the bursar. Like most wizards when faced with a puzzle, he started to roll himself a cigarette. âItâs not a ship. There are ways of telling, you know. Absence of porpoises frolicking around the bows, a shortage of bilges, that sort of thing. The chances of foundering are remote. Otherwise, um, weâd have to man the sheds and row for shore. Um?â
âBut the ratsââ
âGrain ship in harbour, I expect. Some, um, spring-time ritual.â
âIâm sure I felt the building shaking, too,â said Rincewind, a shade uncertainly. Here in this quiet room, with the fire crackling in the grate, it didnât seem quite so real.
âA passing tremor. Great AâTuin hiccuping, um, possibly. A grip on yourself, um, is what you should get. You havenât been drinking, have you?â
âNo!â
âUm. Would you like to?â
Spelter padded over to a dark oak cabinet and pulled out a couple of glasses, which he filled from the water jug.
âI tend to be best at sherry this time of day,â he said, and spread his hands over the glasses. âSay, um, the word â sweet or dry?â
âUm, no,â said Rincewind. âPerhaps youâre right. I think Iâll go and have a bit of rest.â
âGood idea.â
Rincewind wandered down the chilly stone passages. Occasionally heâd touch the wall and appear to be listening, and then heâd shake his head.
As he crossed the quadrangle again he saw a herd of mice swarm over a balcony and scamper towards the river. The ground they were running over seemed to be moving, too. When Rincewind looked closer he could see that it was because it was covered with ants.
These werenât ordinary ants. Centuries of magical leakage into the walls of the University had done strange things to them. Some of