There''s a girl in a mask killing bad guys, but it''s not Katherine Harlow. She''s disappeared and a less experienced but enthusiastic wannabe has sidled in to take her place. You can bet that when Kat returns to reclaim Hollow Girl''s mask, there''s going to be a reckoning, and not just with her ''Little Sister''. Because Detective Collins has crossed a line, leading to an inevitable and bloody final showdown.
