Question

extrapolation on the secret of the chimneys

Answer 1

Anthony Cade (or GENTLEMAN JOE) is not a man who stays too much in a place or on a job. So when his friend asks him deliver the memories of a former prime-minister of a small country he accepts. However things don't go that smoothly. First in visited by a polite baron, a violent member of a known criminal organisation and then is attracted by his Italian waiter. And of course all they want is the manuscript. 
His second mission is to give a young lady some compromising letters, but when he arrives at her house, she asks him to help her dispose of a body (of the Italian waiter). The only thing that the man had was a piece of paper with "11.45 Chimneys" written. When he arrives at the Chimneys house at that time a pistol is heard and Anthony finds himself suspected of murdering a prince. Superintendent Battle doesn't suspect him because he can't find a motive (but Anthony did have a motive). 
Thing are getting more complicated once a French detective arrives and seriously suspects him.