Showing Gotham City Sirens: Union by Paul Dini

Even criminals find Gotham chaotic without Batman, and desperation breeds strange bedfellows. After getting her heart ripped out by Hush, Catwoman's been fighting to keep the city's streets from swallowing her alive. But when Poison lvy must save her from a second-rate thug, it's clear that what the weakened thief needs most is friends.

Teaming with Ivy and Harley Quinn is nothing compared to the enemies they attract and all hell breaking loose. For whether you're the target, or just an innocent bystander, beware a Joker scorned.