The Mystery of the Blue Train is the 6th in Agatha Christie’s series featuring famous oddball Belgian detective, Hercule Poirot. Published in 1928, this installment sees a murder almost fall into Poirot’s lap- a fellow passenger on the (famous at the time) Le Train Bleu, an express train from Calais to the French riveria. The murder victim is American heiress Ruth Kettering, who was on the way to meet her continental lover,. The immediate suspicion is a robbery gone wrong, as some very expensive rubies […]