Unseen University was much bigger on the inside. Thousands of years as the leading establishment of practical magic in a world where dimensions were largely a matter of chance in any case had left it bulging in places where it shouldn't have places. There were rooms containing rooms which, if you entered them, turned out to contain the room you'd started with, which can be a problem if you are in a conga line.

You can't map a sense of humor. Anyway, what is a fantasy map but a space beyond which There Be Dragons? On the Discworld we know that There Be Dragons Everywhere. They might not all have scales and forked tongues, but they Be Here all right, grinning and jostling and trying to sell you souvenirs.

And, while it was regarded as pretty good evidence of criminality to be living in a slum, for some reason owning a whole street of them merely got you invited to the very best social occasions.

Some of them wanted to sell me snake oil and I'm not necessarily going to dismiss all of these, as I have never found a rusty snake.

People don't like to say Horror so they say Dark Fantasy because that's Horror wearing a collar and tie.

Everything makes sense a bit at a time. But when you try to think of it all at once, it comes out wrong.

Look, that's why there's rules, understand? So that you think before you break 'em.