Guards! Guards!

'Do we not well know that the city is in thrall to corrupt men, who wax fat on their ill-gotten gains, while better men are held back and forced into virtual servitude?'

'We certainly do!' said Brother Doorkeeper vehemently, when they'd had time to translate this mentally. 'Only last week, down at the Bakers' Guild, I tried to point out to Master Critchley that-'

It wasn't eye contact, because the Supreme Grand Master had made sure the Brethren's hoods shrouded their faces in mystic darkness, but nevertheless he managed to silence Brother Doorkeeper by dint of sheer outraged silence.

'Yet it was not always thus,' the Supreme Grand Master continued. 'There was once a golden age, when those worthy of command and respect were justly rewarded. An age when Ankh-Morpork wasn't simply a big city but a great one. An age of chivalry. An age when…yes, Brother Watchtower?'

A bulky robed figure lowered its hand. 'Are you talking about when we had kings?'

'Well done, Brother,' said the Supreme Grand Master, slightly annoyed at this unusual evidence of intelligence. 'And-'

'But that was all sorted out hundreds of years ago,' said Brother Watchtower. 'Wasn't there this great battle, or something? And since then we've just had the ruling lords, like the Patrician.'

'Yes, very good, Brother Watchtower.'

'There aren't any more kings, is the point I'm trying to make,' said Brother Watchtower helpfully.

'As Brother Watchtower says, the line of-'

'It was you talking about chivalry that give me the clue,' said Brother Watchtower.

'Quite so, and-'

'You get that with kings, chivalry,' said Brother Watchtower happily. 'And knights. And they used to have these-'

“However,'' said the Supreme Grand Master sharply, 'it may well be that the line of the kings of Ankh is not as defunct as hitherto imagined, and that progeny of the line exists even now. Thus my researches among the ancient scrolls do indicate.'

He stood back expectantly. There didn't seem to be the effect he'd expected, however. Probably they can manage 'defunct', he thought, but I ought to have drawn the line at 'progeny'.

Brother Watchtower had his hand up again.

'Yes?'

'You saying there's some sort of heir to the throne hanging around somewhere?' said Brother Watchtower.

'This may be the case, yes.'

'Yeah. They do that, you know,' said Brother Watchtower knowledgeably. 'Happens all the time. You read about it. Scions, they're called. They go lurking around in the distant wildernesses for ages, handing down the secret sword and birthmark and so forth from generation to generation. Then just when the old kingdom needs them, they turn up and turf out any usurpers that happen to be around. And then there's general rejoicing.'

The Supreme Grand Master felt his own mouth drop open. He hadn't expected it to be as easy as this.

'Yes, all right,' said a figure the Supreme Grand Master knew to be Brother Plasterer. 'But so what? Let's say a scion turns up, walks up to the Patrician, says 'What ho, I'm king, here's the birthmark as per spec, now bugger off'. What's he got then? Life expectancy of maybe two minutes, that's what.'

'You don't listen, ' said Brother Watchtower. 'The thing is, the scion has to arrive when the kingdom is threatened, doesn't he? Then everyone can see, right? Then he gets carried off to the palace, cures a few people, announces a half-holiday, hands round a bit of treasure, and Bob's your uncle.'

'He has to marry a princess, too,' said Brother Doorkeeper. ' 'On account of him being a swineherd.''

They looked at him.