Tell the girl what you have in your apartment. honestly.
From Create Your Own Story
You explain the situation your ran into in the hall earlier, and how quickly it all turned nasty. You give her everything you can remember, including telling her about the girl tied up in your apartment. As soon as you've finished, she takes you by the wrist, and pulls you out the door behind her.
"Which apartment?" she asks. You point weakly. She marches down the hall and in through the door, pulling you in behind her.
"Shit," she says, looking at the tied up girl. You look over and see thick red pustules forming around her nose, mouth, and eyes, and dark red rash across her forehead. Her eyes are glassy, and she's growling softly at the two of you when you go in. "How long she been here?"
"Not long. Couple of hours maybe." You say, shrugging.
"And she wasn't like this when you brought her in?" You shake her head no. "So this shit moves fast. Whatever it is." She lifts her gun and points it at the girl.
