Heaven sends the angel Muriel in disguise to spy on Aziraphale and Crowley. Aziraphale drives to Edinburgh in pursuit of his Clue, and learns a little about a lot. The couple's visit to Edinburgh in 1827 involves graverobbery, a statue and an unfortu... (more)nate encounter with a vial of laudanum. In the present, Crowley is in charge of the bookshop, and is disappointed by human beings and the weather.