Rose twitched. She knew they should've run the second they'd discovered another Moroi here. And now here's another - joined by her old classmate - who claimed to be their friend or whatever, and this was definitely not a good thing.
"We're not going back," she announced, both to reassure Lissa and to set expectations for this stranger. She eyed Jill, contemplating a kick to the head so she could grab Lissa and run. Even if she did have Eddie outside, Rose was confident she could take him, or at least disable him enough to give her time to flee.