As Superman gets closer to solving the mystery of the Vanishing, he comes face-to-face with the evil entity behind it all. But what desperate measures will the Man of Steel take to make things right again? And does Wonder Woman have the power to stop him? Just how far is Superman willing to go?

ADVENTURE COMICS #283 Originally published in April 1961.

When a cache of Kryptonian weapons arrive on Earth, Superboy discovers the secret of the Phantom Zone prison and the would-be dictator General Zod.