Though both girls were being pulled toward the center of gravity that had been moved to the middle of the bar. However, it would seem that Joker had forgotten, or hadn't seen Red move her hand between the wires and her neck so she wouldn't be choked by the wires. As they were pulled toward the vortex, Red wouldn't be hung.
Well, she would, but it wouldn't have killed her. Her hand would have been smushed against her face, and it would have hurt like hell, and because of that, she lost her concentration, and the vortex disappeared, returning gravity to normal. She slammed on the ground, the wires cut into her skin, and they were bleeding, but she was alive. Quickly, Red squeezed her hand in and slipped her head out of the wires.
The same couldn't be said for Gladdie, for when Red ran up to her, expression unreadable, the other girl had her eyes clouded over, her mouth hung slightly open, and her head rolled to the side.
"Gladdie, oi!" Said Red, poking her friend in the head. She couldn't tell if she was dead, or in that half-dead state they sometimes went in in a near-death situation. "You're good, right? Gladdie?"