There, between a certain pawn-shop and a certain tavern, stretched a narrow gap that reminded him of a missing tooth in a rotten jaw. He had always supposed that it was the result of an error by Robert Hooke, the late City Surveyor, who’d done his work sans flaw in the better neighborhoods, but who, when he got to this district, might possibly have been distracted by the charms of a Bridewell girl. Noting the sorts of people who came and went through that gap, Daniel had sometimes speculated as to what would befall him if he ever went in there, somewhat in the spirit of a seven-year-old boy wondering what would happen if he fell through the hole in an out-house.