Immediately recognisable are the Edinburgh chartered surveyor, stalwart of the Conservative Association, who dreams of membership of Scotland’s most exclusive golf club. We have the pushy Stockbridge mother, and her prodigiously talented five-year-old son, who is making good progress with the saxophone and with his Italian. Then there is Domenica Macdonald who is that type of Edinburgh lady who sees herself as a citizen of a broader intellectual world.

In McCall Smith’s hands such characters retain charm and novelty, simultaneously arousing both mirth and empathy. 44 Scotland Street is vintage McCall Smith, tackling issues of trust and honesty, snobbery and hypocrisy, love and loss, but all with great lightness of touch. Clever, elegant and funny, this is a novel that provides huge entertainment but which is underpinned by the moral dilemmas of everyday life and the characters’ struggles to resolve them.