Meet Imogen Quy, College Nurse at St. Agatha's, who finds herself drawn into investigations into the strange death of a student in a locked library. Classic Agatha Christie you might think, although there's more of a nod here to Dorothy Sayers and - with its university background - just a touch of Morse,(a Cambridge backdrop substituting for Oxford's dreaming spires). This is a reasonably diverting mystery, with neatly drawn though not particularly memorable characters and - of course - a picturesque setting. I'm not sure that the ending will take readers totally by surprise; without giving anything away, it is in part quite well signalled early in the book, although I won't pretend I'd worked out all the angles. There is the occasional jarring moment; for example Ms. Quy pays an impulse visit to a completely strange hairdressing salon and just happens to be dealt with by a stylist who is the victim's girlfriend. Mr Dickens might get away with far-fetched co-incidence, lesser writers do not! And being really picky, I would have thought a qualified nurse would not refer to the "St. John's Ambulance Brigade" but would use the correct title "St.John Ambulance Brigade". However, these are minor carps, and if you are looking for a reasonably literate but not over-demanding entertainment to wile away a winter's evening this may well fit the bill.