London! Paragon of cities. How many wonders there are, in its villas, its marketplaces, in its streets and tunnels. London – this uncommon weal of fateful miracles, and of horrors that I know only too well. Cheek by jowl a multitude lie, a thousand-thousand strange tales between them, unknown but for the chance mis-step into an unfamiliar alleyway – the passing glimpse along a half-lit, fog-swathed street. So has it always been in the great cities that draw in every kind of creature. Those who toil; those who live upon them. The builders, the wreckers. Town- and country-men. The eager, the wicked, the mad; and not from this isle alone, but from all the ends of the world. Indeed, not only from this… but now, let me see. How to begin.