Once Upon a TomeWelcome to Sotheran's, the oldest, most bonkers bookshop in the country, with its bizarre clientele, suspicious cupboards, unlabelled keys, poisoned books, some things that aren't even books, and deeply eccentric staff. Think Diary of a Bookseller but with quite a lot more Bernard Black. Some years ago, Oliver Darkshire stepped into the hushed interior of Henry Sotheran Ltd on Sackville Street (est. 1761) to interview for their bookselling