Batman: Nightwalker: The Graphic Novel — DC Comics
Issue: #1
A ruthless new gang of criminals known only as Nightwalkers is terrorizing Gotham, and the city’s elite are being taken out one by one. On the way home from his 18th birthday party, newly minted billionaire Bruce Wayne makes an impulsive choice that puts him in their crosshairs and lands him in Arkham Asylum, the once-infamous mental hospital. There, he meets Madeleine Wallace, a brilliant killer…...
First appearances: Madeleine Wallace
Creators: Cam Smith, Stuart Moore, Christian Wildgoose, Troy Peteri, Laura Trinder, Lauren Bisom, Amie Brockway-Metcalf, Steve Cook, Marie Lu
Characters: Batman, Madeleine Wallace, Alfred Pennyworth, Lucius Fox, Two-Face