The Mystery of the Yellow Room

The true first is the French-language original: Pierre Lafitte et Cie, Paris, January 1908, following twelve-part serialisation in the supplement of L'Illustration, 7 September to 30 November 1907. Both the French original and the first English translation are collected. The first English-language book edition is Brentano's, New York, 1908 (recorded as 3 June 1908) — a Haycraft-Queen cornerstone title in its own right; the Amalgamated Press (London) 1908 issue in original pictorial wrappers is catalogued by dealers as a colonial issue and follows the Brentano's. The Edward Arnold (London) edition is later still. English-language priority between the Brentano's and the Amalgamated Press issues rests on dealer cataloguing rather than a published bibliography, so state Brentano's as the first English edition with that caveat.