I first came across Spark when working in a little second-hand bookshop off the Charing Cross Road. A battered tome of her selected works was on sale in the outside pile, desolately stationed there to be picked over by tourists and dampened by rain. Not having much to do (the shop closed a month later, not necessarily because I’d worked there) I started reading one afternoon, and was hooked. For while Muriel Spark makes you laugh out loud, she also makes you think – she must, I feel, have been a formidable dinner-party companion, quietly sitting there with her razor-sharp tongue . . .