THE PLANET KRYPTON MAY BE NO MORE, BUT SUPERMAN WILL NOW FEEL ITS WRATH! The grim dimensional prison known as the Phantom Zone holds the worst criminals known to the universe, each one as powerful as Kal-El. Now Krypton's Last Son must enter the Phantom Zone to investigate a deadly jailbreak...but is trouble on the horizon? As the Aethyr sets his devious plan into motion, Superman must unravel the true nature of the Phantom Zone before it claims its final inmate! From superstars Mark Waid (Batman/Superman: World's Finest) and Clayton Henry (Batman/Superman) comes the untold tale of one of Superman's most storied dimensions. What is the history of the Phantom Zone, and how can the Man of Steel ever escape it again?

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