Batwing TPB Volume 05 Into The Dark (N52)

"The Gotham Underground is about to boil over with anarchy, and no matter who triumphs, Batwing will be the first target. He must travel into the madness that is The Gotham Underground to put an end to those behind the uprising! Will Batman, Inc., be in the market for a new Batwing? Find out in these stories from issues BATWING #27-34 and BATWING: FUTURE'S END #1."