What is your first thought when you hear the phrase “the phantom of the opera?” Unless you’re an unabashed bibliophile or literary-minded Francophile, it’s almost certainly not the novel, Le Fantome de l’Opera, written by Gaston Leroux in 1910. Still, that early 20th century flight of fancy introduced the world to the grotesquely deformed music lover and catacomb dweller, Erik, he of the half mask and three-quarters madness.