She deflates a little to hear that the lock can't be undone even from inside. She's about to give up and just curl up in fetal position again when the edge of the blanket appears. She stares at it for a long moment before pulling it the rest of the way through the crack and wrapping it tight around herself.

"Thank you," she finally manages to say, her voice small. She's overwhelmed by a startling new idea: survival. If she can just stay warm enough to get through the night, she can survive a small bout of hypothermia. It's warm inside, and there's probably a fire. Food and drink will be harder, but with a bit of smarts and a lot of luck she might get to see tomorrow night.