The Avengers #175

Against a vast, star-flecked cosmic darkness, a massive, eerily luminous figure looms over Earth's Mightiest Heroes in this September 1978 installment. Thor, the Vision, Iron Man, and the Scarlet Witch are caught in the towering entity's grasp, the cover tagline asking ominously, "From Whence Came… the Enemy?" Dave Cockrum's pencils and Terry Austin's inks give the scene a genuinely unsettling sense of scale, making "The End… and the Beginning!" feel like exactly the kind of high-stakes Marvel adventure the title promises.