Thence to Bethlehem where was builded / Dens of despair in the house of bread: 

When William Blake died in 1827 a spate of posthumous articles appeared in various magazines questioning his sanity. One hoax article even claimed to have interviewed Blake in Bethlehem Hospital where he had supposedly been an inmate for twenty years. In Blake's own writings, though Jerusalem is namechecked countless times, Bethlehem is only mentioned once, disparagingly. 

McDevitt's walk takes in the site of London's three historic Bethlehem Hospitals, and follows Los's route in Jerusalem from the Tower of London to the 'Dens of despair in the house of bread' aka Bedlam. 

2pm. £12. Meet on Liverpool Street itself outside Liverpool Street tube. Approx three hours ending North Lambeth tube. Please click here for tickets.