Problem at Sea — Agatha Christie

Poirot is undergoing the trial of a sea voyage to Egypt, supposedly as a holiday. Not enjoying one bit the motion of the waves, he joins in the conversations of the other passengers. Among them is a General Forbes who is angrily dismissive of a man who calls himself Colonel Clapperton. He states that Clapperton is a former music hall performer who, injured during the war, got himself into a society lady's nursing home and then received her patronage to find him a job at the War Office.