Detective Comics (Vol. 3) #1032
Father vs. son round two! Batman and Damian Wayne are once again butting heads after Bruce uncovers the missing Black Casebook pages in the clutches of his estranged son. But when the notorious Hush captures the entire Bat-Family, the Dark Knight and the former Boy Wonder must put aside their differences to help Nightwing, Batgirl, Signal, Orphan, Red Hood, and Batwoman survive!