The parcel was an irregular pentagon about a hundred paces wide. Within it, the sunken ruin was situated off-center, away from the road to Black Mary’s Hole, near a vertex that pointed back towards Clerkenwell. The gardens of a neighboring Spaw came up close to it on one side, making the parcel seem larger than it was. It was one of countless crumbs of territory that had been worried off the edges of the Church’s stupendous holdings in Tudor days. Tracing the changes in its ownership since then had been a good job for an unemployed boffin who knew a lot of Latin—Daniel had made two trips to Oxford to research it. He had discovered that ownership of the land had passed into the hands of a Cavalier family that had gone to France during Cromwell days and, owing to an ensuing pattern of marriages, bastardy, suspicious deaths, and opportunistic religious conversions, essentially become French people and were unlikely ever to come back. Twenty-five years of almost continual war between Britain and France had left them profoundly ignorant of suburban London real estate trends. Daniel had passed all of this on to Roger at the Kit-Cat Clubb. Letters had been despatched to France, and a few weeks later Roger had informed him that he could build anything he wanted there, provided it might later be resold at a profit. Daniel had found a mediocre architect and told him to design houses with shops in the ground floor, wrapping around three sides of the property, embracing a court with the ruin in the middle of it.