"The Horn of the Unicorn!" Story by Bill Mantlo. Art by Herb Trimpe, Keith Pollard (pages 2 and 3), and Josef Rubinstein. Cover by John Romita, Jr. and Bob McLeod. Iron Man battles the deranged Unicorn at the new Stark International complex, while a mystery villain lurks in the background. Cameo appearance by the Jack of Hearts. 32 pages Cover price $0.35.