1st printing. Collects Deathstroke (2016 3rd Series) #30-35.

Written by Christopher Priest. Art by Carlo Pagulayan, Roberto Viacara, Jason Paz, Ed Benes and Richard Friend. Cover by Lee Weeks.

When Batman discovers a mysterious package containing DNA test results proving that he is not Damian Wayne's biological father, the Dark Knight sets his sights on his son's true father-Deathstroke! But Damian Wayne can't really be Slade Wilson's son-can he? And who sent the package-and why?

The ultimate custody battle ensues as the World's Greatest Detective and the World's Deadliest Assassin clash!

Hardcover, 152 pages, full color.