St. Paul’s had passed from view; they had turned onto Watling Street and come to a dead stop in the congestion; the tables had turned, and now Wren was looking at Daniel bemusedly. "I do not intend to make your business mine," he said, "but it would help me to help you, if you would allow me to know what sort of Hooke-stuff you are looking for. Some of his artwork, to adorn your walls? Navigational instruments, for finding your way back to Boston? Architectural drawings? Astronomical observations? Schemes for flying machines? Samples of exotic plants and animals? Clock-work? Optical devices? Chymical Receipts? Cartographical innovations?"