By the step leading up into the sleeping-car stood a young French lieutenant, resplendent in uniform, conversing with a small man muffled up to the ears, of whom nothing was visible but a pink-tipped nose and the two points of an upward-curled moustache.

It was freezingly cold, and this job of seeing off a distinguished stranger was not one to be envied, but Lieutenant Dubose performed his part manfully.

(Tuesday Teaser from pg. 3 of Murder on the Orient Express by Agatha Christie)