Sandwiched between Arnould Galopin's Doctor Omega (1906) and Edgar Rice Burroughs' A Princess of Mars (1912), Gustave Le Rouge's masterpiece, Le Prisonnier de la Planete Mars (1908) and its sequel, La Guerre des Vampires (1909), are a Martian Odyssey in which young engineer Robert Darvel is dispatched to Mars ny the psychic powers of Hindu Brahmins. On the Red Planet, Darvel runs afoul of hostile, bat-winged, blood-sucking natives, a once-powerful civilization now ruled by the Great Brain. The entity eventually sends Darvel back to Earth, unfortunately with some of the vampires. The second volume deals with the war of the vampires back on Earth. Planetary romance blends here with "cosmic horror" as the characters switch from swashbuckling he-men to helpless bundles of gibbering terror.