Batman: Prelude to the Wedding: Nightwing vs. Hush #1

Superman and Nightwing take Batman on his bachelor party. They go to Bat Burger and are about to go through a lightening door to fish when an emergency pops up and Superman is called away. Nightwing and Batman are attacked by Hush, who is mad at Bruce. The door is damaged and Nightwing and Hush fall through it to Betwixt, a space between worlds. They are attacked and go to Wayne Manor, where they are stronger, and Hush reveals he looks like Dick. They are attacked, Batman saves Nightwing, but Hush is lost. Bruce and Dick talk. Dick warns Barbara Joker is attacking because of the wedding.