Harley Quinn & the Gotham City Sirens Omnibus

"Catwoman, Poison Ivy and Harley Quinn are tired of playing by other peoples' rules regardless of which side of the law they're on. These tough ladies have a new agenda that's all their own, and they'll use any means necessary to pursue it. But can they get along and work as a team? And who will get hurt along the way? Collects GOTHAM CITY SIRENS #1-26 and CATWOMAN #83."