Why didn't they move into a neighbor's home?
Their home was starting to leak from the beginning.
They should have at least gotten onto roof and cleaned off what's growing up there. They never considered that despite all the leaking?!
Though it might have meant a few days travel, they could have moved into another home. That time they drove to town, their dad said something about a neighbor's home.
I do understand, how at the end they wanted to live where they wouldn't be found. And if they were living in a neighbor's home, bad people would have found them.
But, so what are they going to do? Live in the forest forever? In that tree stump?
And will the boy grow up and have sex with his aunt?