Mrs Hudson and the Lazarus Testament

A man is accidentally knocked down outside 221B Baker Street by a carriage. His dying words claim he has seen a man rise from the grave. At the same time, a visitor arrives with a mystery of unparalleled international importance. The Viscount Wrexham is missing, presumed dead, in strange circumstances. In the North, rumours stir of a dead man haunting the moors. Broomheath Hall is beset by ghostly lights and spectres. What does it all mean? Can arcane knowledge bring people back from the de...