White Wig by Gerald Verner
A passenger is found shot dead on a London bus. Only four people were on board.
Apart from the driver and conductor, there was just an elderly man and a masculine-looking woman, who both alighted separately at earlier stops. To the police, the conductor is the obvious suspect, and he is held and charged.
The conductor’s fiancée hires private detective Paul Rivington to prove his innocence – and it turns out to be his most extraordinary and dangerous case to date.
Gerald Verner (1897-1980) was the pseudonym of British writer John Robert Stuart Pringle. Born in London, Verner wrote more than 120 novels that have been translated in over 35 languages, and many of his books have been adapted into films, radio serials and stage plays.