They're taking care of you because they're raising you to walk right into their open mouths without protest.

(That is probably a little too blunt for this particular situation (and the age of the person she's talking to), but to Lucretia, the girl seems utterly delusional.) You know that's the only chance you have at life, right? You aren't coming back after they eat you. That's it. For you, and your family.

(The girl simply stares at her. Lucretia has no idea if she's shocked or if she choosing not to dignify this with any kind of response at all.) We could help you get out of here. All of you. You could come and live in the city, or...

("With the rest of you? With all of the monsters who might eat us anyway?"

Lucretia looks a little lost for words, at this.)