The Master of Darkness confronts international intrigue in two thrilling espionage novels by Walter B. Gibson. First, The Shadow journeys to Paris and Moscow to undermine a Bolshevik conspiracy to seize "The Romanoff Jewels" in one of Walter Gibson's most acclaimed novels! Then, the Dark Avenger is summoned to Washington, DC to prevent a hidden spymaster from acquiring the Neutralizer, the ultimate weapon of war. Plus, counterintelligence agent Tim King examines "Spycraft and The Shadow" !