"There!" cried Daniel, who was tilting a hand-drawn map toward the feeble light lapping in through the slit, and menacing it with a Royal Society burning-glass the size of a dessert plate. This artifact, which was encrusted with a Rokoko frame and handle, had been a gift to Natural Philosophy from some member of the House of Tuscany. Beneath its splendour, the map looked very mean. The map had been cobbled together, as Daniel had explained, from rumors, recollections, and suppositions given to him by John Doe, Sean Partry, Peter Hoxton, Hannah Spates’s father, and any of their drinking-companions who’d been in earshot when Daniel had inter-viewed them. "Mark yon brick warehouse," Daniel continued, indicating Bermondsey.