Comics, The Avengers #101, 102, 103, 104 and 105. Marvel. 1972 Harlan Ellison story, Rich Buckler cover and art (#101-103). Sentinels appearance (#104). Sif, Gaza, Barbarus, Equilibrius, Brainchild, Amphibius, Lupo, Lorelei, and Black Panther appearances. John Buscema and Jim Mooney cover and art (#105). [5]