Guillaume Perilhou’s new novel, ‘La Couronne du Serpent’, delves into the tumultuous making of Luchino Visconti’s masterpiece ‘Death in Venice’, focusing on the real-life story of Bjorg Andersen, the 15-year-old actor who played Tadzio. Through a series of letters from those involved, Perilhou exposes the darkness behind the beauty, exploring themes of obsession, exploitation, and the indelible mark left by fame.