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 unfortunate 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.

Aziraphale tries to bring Maggie and Nina together by organizing a meeting of the Whickber Street Shopkeepers and Street Traders Association. In Hell, Shax is determined to launch a full scale attack on the bookshop, with a legion of demons at her command. Nina's heart is broken, as is a bookshop window. Gabriel has a close encounter with Mrs Sandwich and a small plate of cakes.

Crowley becomes a Heavenly bee and learns the truth about the Armageddon sequel. Aziraphale defends his bookshop from Shax's army and reveals his halo, Maggie and Nina become warriors, and Jim the assistant bookseller gets some hot chocolate. Crowley and Aziraphale get to the bottom of the mystery of the Matchbox. The Metatron brings an oatmilk latte, along with a final offer.