This is a biography of Robert Mylne, who was born in Edinburgh in 1733 and was descended from a line of Master Masons to the Scottish Crown. He came to London at the age of 26 and won a competition to design and build Blackfriars Bridge. Following on from that he became Surveyor to St Paul's Cathedral, clerk of works to Greenwich Hospital and engineer to London's main waterworks. In his role as Surveyor of St Paul's, he was responsible for fitting out the cathedral for Nelson's funeral. Mylne prepared the sarcophagus which would rest above floor level in the crypt and arranged to place into it a secret hoard of coins and medals; this event is described for the first time in the book. There are 40 black and white photos illustrating Mylne's life and works. There are extensive notes, a list of sources and a detailed index.