They were taking over the near end of an anomalous open ground north of the church, which spanned a distance of a hundred yards or so between it and the riotous Poultry/Threadneedle/Cornhill/Lombard intersection. Formerly this had been the Stocks Market. It was impossible for so much uncovered dirt to exist in a city like London without becoming a breeding-ground for Crime or Commerce, and Daniel spied instances of both as soon as he got out of Wren’s carriage. At the nearer end, Wren’s workmen had set up, and were guarding, supply-dumps for the masons and carpenters who would spend the next year or two working here, and were erecting a tiny encampment of shacks and tents. Their dogs were parading around, solemn as doctors, urinating on anything that did not move fast enough. Amid this mess, Daniel spied one cart laden with parcels he’d packed with his own hands in the attic of the Royal Society.