13 Clues for Miss Marple by Agatha Christie. Published in the UK as The Thirteen Problems. (The Thirteen Problems, 13 Problems for Miss Marple, The Tuesday Club Murders, 13 Clues for Miss Marple)
THE PASSING OF MR. QUINN, Agatha Christie, London Book Company, 1929, First Ed. Originally published as a short story in 1924, this became the very first Agatha Christie film adaptation, released in 1928 as a silent. This book is an adaptation of the film and predates the first book printing. 'The Mysterious Mr Quin' was a favourite of Christie. In the film, the character was Mr. Quinn. In this book of the film the character is Mr. Quinny.