Les Onze Mille Verges, ou les Amours d'un Hospodar

It's an erotic novel written under the name G.A., there is no record of Apollinaire saying he wrote it, but his close friends, like Picasso, say that it was him, and classify this novel as one of the most humouristic novels by the author. It may be portraiyed as a pornographic novel, but it is in fact more of a comedy, with hints of erotism.