This is my first Ngaio Marsh (who is, along with about a dozen other women, the Queen of Crime). I was not particularly impressed. I don't read murder mysteries so that I can read half a book before someone dies. All it says to me is that the writer is not particularly good at mysteries and so can't write an entire book centred around the murder. The lead up was interesting, though in my opinion out of place in a murder mystery. Sometimes the lead up to the murder contains a few red herrings and some information relevant to catching the killer. What I most particularly didn't like was the fact that, as in Sherlock Holmes stories, all the important evidence is kept from the reader. What that says to me is that the author is afraid that the reader will be able to work it out for themselves too quickly, and that the author should therefore not be writing mysteries.
I enjoyed this, but I wouldn't recommend it and I'm not particularly interested in others by this author.