For all of the Nightwing newcomers out there, Haly's Circus is relevant to his origin story because Dick Grayson was a child acrobat (and a member of the Flying Graysons ensemble) before the death of his parents in a trapeze accident. Their death during a show in Gotham forces his retirement from his life as a performer, which eventually sees him taken under Bruce Wayne's wing as his ward -- and his eventual birth as Robin. The fact that Haly's Circus will play a role in the Nightwing story means that we won't simply catch up with him as an adult superhero who has moved on from his time in Batman's shadow. The story will (at least partially) focus on his origins, as well as how he actually became a world class acrobat.