Batman vs Deathstroke HC

When Batman discovers a mysterious package containing DNA test results proving that he is not Damian Waynes biological father, the Dark Knight sets his sights on his sons true fatherDeathstroke! But Damian Wayne cant really be Slade Wilsons soncan he? And who sent the packageand why? The ultimate custody battle ensues as the Worlds Greatest Detective and the Worlds Deadliest Assassin clash in stories from the pages of DEATHSTROKE #30-35.