With the widowhood of Queen Victoria, the glorious life of palaces almost came to an abrupt end. There would be just one final flowering of palatial style just before the First World War, on an imperial scale - the redesign of Buckingham Palace and The Mall. The interwar period was a difficult time for many of Britain's best palaces, forced into a half-life of grace-and-favour accommodation for exiled royalty and aristocracy down on their luck. But more recent times would see restoration and conservation on a new scale and, with it, detective work to uncover palace secrets.