The outer reaches of the complex were open to the public. Daniel got all the way through Byward Gate, and into the beginning of Mint Street, before anyone bothered to ask him what he was doing. He claimed that he was here to pay a call on Sir Isaac Newton. This got him an escort: an Anglo-Irish private soldier of the Queen’s Own Black Torrent Guards, who accompanied him a short distance up Mint Street. This was narrow, noisy, and long. For the first several yards it was lined with the dwellings of some of the Mint workers. Past that, it was pinched between a porter’s lodge on the right side of the way, and on the left, a building that served as the formal entrance to the Mint, with stairs leading to an office on the storey above.