Underlondoners

At first glance, the busy street Nix ushers Reid out to looks like something out of a Charles Dickens book, although slightly more sanitised than that. The street is narrow and jammed with stalls selling a massive variety of food, clothing, small animals, tools, odd-looking electronics and virtually anything (and everything) else. Few people in the street look particularly well-off - or particularly clean - although there's a wild variation in outfits, ages, genders and races. There are even horses and carts, although the occasional electric flicker betrays the fact that the horses, at least, are some kind of hologram, and in the sky are pigeons, and odd flying shapes that look as if they might be some kind of motorcycle or quadbike. Far off, and high up, an odd-looking machine like a train or perhaps a tram whirrs and rattles along elevated rails into the distance as it snakes through the tallest buildings.

The overall impression is that of noise and ragged colour and smoky late-afternoon air, all highlighted by the rather incongruous-looking strands of fairylights and the lightly falling snow. London smells odd: not entirely unpleasant, but smoky and damp, with an odd note of petrol and oils, maybe even gunpowder, behind the smells of dozens of cultures' worth of cooking food.

Nix turns to Reid with a laughing, red-lipped grin, gesturing with her furled umbrella. The door she's holding open for him is now that of a pub, the George Cross, with people laughing, shouting and drinking behind them as they had been in Milliways, but unlike Milliways it's far pokier, darker and overheated: it's no surprise that she preferred to drink at the end of the universe, when the opportunity presented itself.

"Welcome to London!"