A ruthless criminal who will stop at nothing to squash the evidence against him. A beautiful woman with a mysterious secret. A doomed express train. A murdered man in a sleeping compartment. An amateur detective up on all the latest inductive methods. And a hero who looks for all the world like a murderer.
You can rely on these ingredients to produce first-rate entertainment, and you can rely on Mary Roberts Rinehart, the queen of American mystery writers, to make the best use of her ingredients.