Bertha did not tell Amos Smith everything about the events.
Actually, when she was seven, shortly after her younger brother disappeared, her adoptive mother wanted to give her to someone else to raise. Everything was arranged and she was already in the car, but in the end, her grandfather brought her back.
Since then, her grandfather took her by his side, saying if the adoptive mother wouldn't raise her, he would.
[When I was eight, my sister was born.]
[When she was two months old, she had a high fever that almost claimed her life.]
[I knelt in front of the village temple for a long time, only hoping the Bodhisattva would bless her with a safe upbringing. Fortunately, she made it through.]
[Then that incident happened. I stayed on the mountain for three days before my grandfather found me.]
[It turned out a bunch of bad kids in the village deliberately threw my shoes by the river. My grandfather thought I had drowned in the river.]