Catwoman deals with the aftermath of battling her sister, setting her against Harley Quinn and Poison Ivy in a brutal display of their villainous roots. And don"t miss guest appearances by Zatanna and Talia al Ghul. Then, The Joker is back in Arkham Asylum and Harley Quinn breaks back in with him - but is she there to stand by him or destroy him? Either way, Poison Ivy and Catwoman must put aside their tumultuous past to help their wayward friend. Guest-starring Clayface and Batman! Collects "Gotham City Sirens" #14-26.