Comics, The Avengers Group. Marvel. 1975-87 This group includes #136 (art by Tom Sutton and Mike Ploog), 144 (origin and first appearance of Hellcat plus a Squadron Supreme appearance), 145 (first appearance of the Assassin, Gil Kane cover, Don Heck art), 157 (Black Knight appearance with Jack Kirby cover and Don Heck art) and 279 (art by Tom Plamer and Christie Scheele). Mild wear to covers and spines. [5]