
Death in the Clouds by Agatha Christie
So, my favorite part of Death in the Clouds is that a jury believes Poirot is guilty of the murder, although their opinion is not upheld. And really, someone is always dying around him. Granted, the fact that he was foreign had more to do with their suspicion than anything, but nonetheless.
A woman is killed on the same plane Poirot was on. Unfortunately, Poirot was asleep at the time. Flying does not agree with his stomach. From the clues on the plane, the woman was killed by a dart from a blowgun. We have a nice limited group of suspects - it had to be someone on the train. We also get appearances by Inspector Japp from Scotland Yard and Parisian chief inspector Giraud, showing the different ways the three go about investigating.
The suspects are an interesting lot, the solution's well done. It's perhaps not memorable, but it is a solid book....