After hours of working deeper into the city they reached the Khan el-Khalili: a shambolic market, bigger in itself than all but a few European cities. Nyazi bade Jack take his shoes off and led him into an ancient mosque and up a steep spiral staircase that was dark and cool as a natural cave. Finally they stepped out on the roof and Jack looked out upon the city. The river was too far away to be seen from here and so what he saw was a million dusty flat rooves piled with bales, barrels, bundles, mounds, and household detritus. Each roof had its own peculiar height, and the lower ones seemed in danger of becoming buried.