Yes.

Harley left Jester at the hideout, implanted in the special education device that had helped hide and retrain him to his new personality. To keep him safe and her, while she got him a little playmate.

Sneaking in was easy, and so was finding the tools that would help her with the entrappment of the heroine Cassie Sandmark, also known as Wonder Girl. She had even found a few mind control devices that could help her with the adding of the heroine to her family.

She hacked the computer, then she left a minor message for Cassie that would attract her attention. It was shortly after that the heroine walked into the Tower. Only to be trapped in the front hall. The doors sealed. Mechanical tentacles came at her, as she tried to fight her way out.

It was soon apparent that she was winning. 'This won't do. But this should get her.' Harley said, as she pumped the room with knock out gas. It took a few minutes, but soon the heroine fell.