Book excerpt: HORRIBLE HISTORIES GRUESOME GUIDES: STRATFORD-UPON-AVON takes readers on a gore-tastic tour of the streets of Stratford-upon-Avon exposing all its scurrilous secrets. With a frightful full-colour map tourists can plot their path to the past. Fatal fleabites, bloody battles and brutal beheadings, it's a trip no Horrible history fan will want to miss