Prepare to embark on a thrilling journey aboard the luxurious Blue Train, bound for the French Riviera. A beautiful heiress, a precious collection of rubies, and a love triangle form the backdrop of Agatha Christie's fifth Hercule Poirot novel. As the Belgian detective sets out to solve the murder of American heiress Ruth Kettering, the reader is thrown into a web of suspicion and intrigue. Derek, her estranged husband, seems to be the prime suspect, but as Poirot delves deeper, the truth slowly