The girl saw in Judy an opportunity to escape. As the other girls in black were chasing her, she decided to push Judy away so that all the girls in black would attack her. And the unknown girl will calmly leave, since no one pays attention to her.
2021-10-01 18:59:23 +0000 UTC
Awesome... just an observation:
The transition from the unknown woman running away from the oily zombies in the 6th, looks like she goes to aid Judi, but she's standing there in the 7th to tell her that everyone are on their own there... looks odd...