Reprints Fantastic Four #7, Iron Man from Tales of Suspense #41, Incredible Hulk #4 (The Monster and the Machine), and Doctor Strange from Strange Tales # 111. Cover pencils by Jack Kirby (cover repros) and Steve Ditko (Dr. Strange image), inks by Dick Ayers (Hulk), Sol Brodsky (Tales of Suspense), Jack Kirby (Fantastic Four), and Steve Ditko (Dr. Strange). "Prisoners of Kurrgo, Master of Planet X," script by Stan Lee, pencils by Jack Kirby, inks by Dick Ayers; Kurrgo sends a robot to take the Fantastic Four to Planet X. "The Stonghold of Doctor Strange!", script by Stan Lee (plot) and Robert Bernstein (script), pencils by Jack Kirby, inks by Dick Ayers; An imprisoned criminal scientist takes control of Iron Man in order to free himself; He threatens to blow up the world unless he is made world ruler; Iron Man stops him by shorting out his power and is helped by the villain's conscience-stricken daughter. "Face-to-Face with the Magic of Baron Mordo!", script by Stan Lee, art by Steve Ditko; In his castle in Europe, Baron Mordo plots to steal the secrets of his former master, the Ancient One; Sending his spirit form to Tibet, he causes Hamir to poison the Ancient One's food; From his NYC sanctum, Strange senses his master's plight, and challenges Mordo to a battle in their spirit forms. "The Monster and the Machine!", script by Stan Lee, pencils by Jack Kirby, inks by Dick Ayers; Rick uses some of Banner's machinery to transform the Hulk, who was stuck in his monster persona, back into Bruce; Bruce is incredibly weakened by the transformation and takes a chance in using the machinery on himself again which transforms him back into the Hulk's body but with Bruce Banner's mind; Now Bruce and the Hulk can switch at will using the gamma ray machine. 68 pgs., full color. Cover price $0.25.