Home to the largest medieval gothic cathedral north of the Alps, York is one of Europe's most historically interesting cities. However, there is still more to be discovered - much that is shrouded in mystery and that has been kept secret. This clandestine aspect of York's history has been difficult to unearth and, for that reason, it is not always included in standard histories or guides to the city. Join author Paul Chrystal on an exciting and dramatic journey through the cobbled streets of this picturesque city as he exposes and unravels some of the more arcane aspects of York's chequered past.