By Nathan Clarke & Joseph Wilkes Elusive street artist Banksy has broken his silence with an eight word reply after a mystery mural appeared overnight in a UK city. A new mural depicting Dorothy from the Wizard of Oz sprang up overnight on the side of a bar in Birmingham \- and delighted locals in England’s ‘second city’ had high hopes that it was a new creation from one of the UK’s most famous artists. The picture shows Dorothy reaching for some shiny red shoes on a wire and People were excited because it looked like something Banksy would do. Phil Oldershaw, who runs the Sidewalk bar, said t…