Picked this book up after a really bad read. Agatha Christie does not disappoint. 
 This mystery novel follows characters on their path to solve the deaths of various seemingly unrelated people. 
 I found it hard to place the time period this story is set in but if I were to guess it would be the early 1900's. There is a little romance thrown towards the end which is unusual for an Agatha Christie novel I think. 
 (view spoiler)[ Initially I thought maybe it was a story within a story concept. But that cleared up soon enough. The problem I had was with the medical explanations of the deaths. The randomness of these diagnosis probably stems from the fact that medical science was not very advanced thereby confirming my opinion of the time period the story is set in.The confrontation leading to Osborne's guilt coming to light took me by surprise.I thought I had it all figured out by then. The seances with the three women was definitely spooky but it never struck me that there must be a supernatural influence in the deaths of the victims. (hide spoiler)] 
 Overall a good ready with enough mystery to keep one hooked.