"And now he approached the great city, which lay outstretched before him like a dark shadow on the ground, reddening the sluggish air with a deep dull light, that told of labyrinths of public ways and shops, and swarms of busy people. Approaching nearer and nearer yet, this halo began to fade, and the causes which produced it slowly to develop themselves. Long lines of poorly lighted streets might be faintly traced, with here and there a lighter spot, where lamps were clustered about a square or market, or round some great building; after a time these grew more distinct, and the lamps themselves were visible; slight yellow specks, that seemed to be rapidly snuffed out one by one as intervening obstacles hid them from the sight. Then sounds arose—the striking of church clocks, the distant bark of dogs, the hum of traffic in the streets; then outlines might be traced—tall steeples looming in the air, and piles of unequal roofs oppressed by chimneys: then the noise swelled into a louder sound, and forms grew more distinct and numerous still, and London—visible in the darkness by its own faint light, and not by that of Heaven—was at hand."