Abandoned tunnels, derelict stations, old trackbeds and much more; all are included in "Do Not Alight Here", an entertaining and informative book that guides the reader through London's many remaining disused Underground and main line railway structures. They can be viewed in a series of 12 guided walks and short tube and train journeys, devised and investigated by the author, each of which takes in a sample of these forgotten and fascinating remains, with most of the entries illustrated with recently taken colour photographs.