In The Company of Cheerful Ladies
Alexander McCall Smith, Abacus, £6.99
Mma Ramotswe, Botswana's No1 lady detective, is safely married and has plenty of work. But then she knocks down a nice man with her tiny van, and her dreadful ex turns up, and suddenly there is enough going on -- but not too much -- for a gentle comic narrative. Sixth in the series and no big shocks (that's the appeal).