This image is the cover for the book The Rayner-Slade Amalgamation, Classics To Go

The Rayner-Slade Amalgamation, Classics To Go

A Russian princess, a mysterious Norwegian doctor, nefarious German chemist, a disappearing Parisian maid, generous American millionaire, a smart secretary with a secret, a cache of fabulous jewels, secret poisons, multiple murders, Opera singers, lost diamond buckles - the lot. The author did not leave out a single piece of the 'thriller formula'. (Goodreads)

J. S. Fletcher

Joseph Smith Fletcher (7 February 1863 – 30 January 1935) was an English journalist and author. He wrote more than 230 books on a wide variety of subjects, both fiction and non-fiction, and was one of the most prolific English writers of detective fiction. (Wikipedia)

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