As dread roils the universe, DC's most powerful heroes navigate the terror of the Nightmare Realm in these fearful fables! Power Girl searches for a tangible foe in her dream state while Superman and Supergirl are horrified by a hideously transformed Cyborg Superman, who is devouring the Super-Family! Meanwhile, the Justice League Dark find themselves trapped in a labyrinth of horror, as Wonder Woman grapples with her deepest fears and insecurities!...