The Gentleman Adventurer

When the British government asks Harry Delamere to courier a secret document from Constantinople to Paris on the Orient Express, it seems such a simple way to cover a couple of months' rent and some outstanding bills.

But somebody knows a lot more than he does, nobody trusts him, and pretty much everybody's trying to kill him. 

All the glamour of the Orient Express, melodrama, excitement, sinister foreign gentlemen, exotic foreign ladies, bandits, revolutionaries, assassins, other exotic foreign ladies, interruptions to the regular timetable, surprises, disguises, explosions, outrages, breathtaking escapes from death, and an unfortunate incident in a Viennese lavatory. 

Yes indeed, ladies and gentlemen, following the highly-regarded entertainment of Death and the Dreadnought (the one with the burlesque dancer and the duck pâté sandwich, though not at the same time), it's another extract from the memoirs of Sir Henry Delamere, and another he could well have done without.