The "43" denotes a distinct artistic object, not just a book. Here are the technical specifications for that edition:
Books * La pâle heure sombre de la chair (Erotisme) (French Edition) 3.33.3 out of 5 stars33.3 out of 5 stars. 3 customer reviews. Xavier Duvet: books, biography, latest update - Amazon.com xavier duvet my feminization 43
His prolific "Saga Duvet," a vast interconnected universe of characters and stories, explores themes of gender blending, unspoken fantasies, and ambiguous pleasure. This saga includes popular series such as Discipline , TransFrancisco , Le Journal d'une Soubrette , and his widely successful Féminisation series. The "43" denotes a distinct artistic object, not just a book