Master Man was stronger than untamed horses, swifter than raging winds, braver than mighty lions, wiser than wisdom, and as kind as Galahad. When he was a boy, he was weak, but a wise doctor gave him a magic vitamin capsule (the Vitacap) containing all known energy sources. After ingesting the capsule, the boy not only became the strongest man on earth, but also gained super-speed and invulnerability. As an adult, he built a castle made of solid rock on top of a high mountain peak. From there he could observe his surroundings and respond to calls for help.