Marvel · December, 1969
1st Appearance of Lorelei; 2nd Appearance of Amphibius; 2nd Appearance of Barbarus; 2nd Appearance of Brainchild; 2nd Appearance of Gaza; 2nd Appearance of Lupo; Origin of Lupo; Origin of Piper; Versus Magneto
War in the World Below!
Writer: Roy Thomas
Artist: Neal Adams