I've read one other Margery Allingham, Police at the Funeral, which I enjoyed very much. This one was also enjoyable, but not quite as good. Perhaps I've just had enough of those secret agent style books with spies and international intrigue and the Cold War and so on. In which case I should take a break from those books. This has some fantastic parts and is well worth reading, however. Particularly if you enjoy mystery stories. There were certain aspects that, while important for the story, are terribly dated and rather unnecessary, in my opinion, such as the idea that young people on motorcycles are automatically violent or criminal or less-than-respectable.