Magrat didn't comment on this, because it had occurred to her that destinies sounded easy enough when you talked about them but were never very bankable where real human beings were concerned. But Nanny Ogg sat back and tipped another generous measure of apple brandy in her tea.
'Could work out nice,' she said. 'A bit of peace and quiet for fifteen years. If I recall the spell, after you say it you have to fly around the castle before cock crow.'
'I wasn't thinking about that,' said Granny. 'It wouldn't be right. Felmet would still be king all that time. The kingdom would still get sick. No, what I was thinking of doing was moving the whole kingdom.'
She beamed at them.
'The whole of Lancre?' said Nanny.
'Yes.'
'Fifteen years into the future?'
'Yes.'
Nanny looked at Granny's broomstick. It was a well-made thing, built to last, apart from the occasional starting problem. But there were limits.
'You'll never do it,' she said. 'Not around the whole kingdom in that. That's all the way up to Powderknife and down to Drumlin's Fell. You just couldn't carry enough magic.'
'I've thought of that,' said Granny.
She beamed again. It was terrifying.
She explained the plan. It was dreadful.
A minute later the moor was deserted, as the witches hurried to their tasks. It was silent for a while, apart from the squeak of bats and the occasional rustle of the wind in the heather.