The Mystery of the Blue Train

A luxurious train journey, a priceless ruby necklace, and a shocking murder—can Hercule Poirot uncover the truth before the killer escapes? In The Mystery of the Blue Train, Agatha Christie takes readers aboard the famous Blue Train, where glamour, wealth, and hidden secrets collide. When the wealthy heiress Ruth Kettering is discovered murdered during the journey, a valuable ruby necklace also disappears, turning an elegant European adventure into a baffling criminal investigation. As Hercule