Catwoman, Vol. 4: Gotham Underground

After being robbed time and time again by Catwoman, Gotham City crime lord the Penguin has decided to wage war against the thieving anti-hero. However, he isn't the only one after her. Someone named the Joker's Daughter is after Catwoman. Who is she, and why has she come to Gotham City? Writer Ann Nocenti continues her run on the title with CATWOMAN VOL. 4, collecting issues #20-24, CATWOMAN ANNUAL #1 and JOKER'S DAUGHTER #1.