Golden age detective novel, which builds an atmosphere and mystery long before a murder is committed, then proceeds to a robust, enjoyable whodunnit. A book which is light and nimble and something of a period piece – particularly noticeable in the treatment of an ‘exotic’ and very psychologically baffling Spaniard. A good example of the morals and morays of an English class, with about it – mainly the atmosphere and hints at a darkness under the surface of the action – which comfortably pulls it clear of generic sludge.