Nightwing Vol. 5: Setting Son (the New 52), Paperback

Even though Nightwing has relocated to Chicago, the ghosts of Gotham City won't let him be. An old friend, the Mad Hatter visits his new found home, forcing Nightwing into an uneasy alliance with the mysterious Marionette. With Nightwing trying to establish a new life in Chicago, his sins from his past will come back to haunt him unless he can make peace with his old life.
Collects NIGHTWING #25-29 and NIGHTWING Annual #1.