HORRIBLE HISTORIES GRUESOME GUIDES: LONDON takes readers on a gore-tastic tour of the streets of London, exposing all of its most scurrilous secrets. With this book tourists can plot their path to the past - take a trip to the terrifying Tower, dip into the ruthless River Thames (London's largest toilet!) and peer into creepy St Paul's Cathedral. Plague, pestilence and fire, it's a trip no Horrible Histories fan will want to miss!