A single graphic adventure, told in 3 parts, published in The Shadow #7, July 1965 - 25 pages.
A new arch-villain shows up to challenge the Shadow, a large muscular behemoth calling himself the Brute and enjoying one power no one else has shown, that of being able to resist the Shadow's 'mystic marvels'. This opponent is the creation of Shiwan Khan and his fantastic growth ray.