Ngaio Marsh has long been considered one of the "Queens of Crime", a leading author in the fair-play detective tradition of the inter-war years. You just have to look at the laudatory comments covering my reprint edition to see her reputation - "She writes better than Christie", "Among the Queens of Crime she stands out as an Empress", and so on. Reactions I've seen on classic crime fiction blogs have been… less positive. However, this is my first time reading a Marsh book, so…