Rating: ** (2 stars out of 5)
One of Agatha Christie’s poorest efforts with Hercule Poirot, as she herself acknowledged. I wouldn’t say that it is a complete waste of time, but the writing is amateurish and the final conclusion not very satisfying, Poirot’s summary failing miserably. The “murder on a train” plot was done in a much better fashion in “Murder on the Orient Express”.
The key problem in the story is the lack of characters you want to identify with. In many stories, Christie builds up characters that we become very sympathetic to. When some suspect is used as a red herring, either Christie comes up with a justification that we empathize with, or the character is truly bad and comes to a miserable end. In “The Blue Train”, the characters are so skin-deep that I actually wanted one of the “good” characters to be the murderer, which didn’t happen. While the ending itself was pulled out of a hat, it was at the same time totally predictable the way the rest of the book went.

