She looks at it.

It doesn't look exactly like her handwriting, but maybe if her hands didn't shake so much -

"Is it?" she asks. "Was I here once?" Pause. "A residence. Residences accumulate food - and have running water - and I have one. That's - good."

It has been a long time since anything unambiguously good has happened to her. Even Voice releasing her required that Voice catch her in the first place.