 Werth soon became Saint-Exupery's closest friend outside of his Aeropostale associates.Werth was an anarchist, a leftist Bolshevik supporter of Jewish descent, twenty-two years older than Saint-Exupéry.Saint-Exupéry dedicated two books to him, "" ("Letter to a Hostage") and "Le Petit Prince" ("The Little Prince"), and referred to Werth in three more of his works.