What did Laura do after Mary lost her sight on the bank of Silver Lake?

After Mary lost her sight on the bank of Silver Lake, Laura became sensible. According to public information, Laura had to shoulder the heavy responsibility of the family because her sister was blind in the plot, and she became sensible and filial. On the Bank of Yinhu Lake is a book published by Sichuan Literature and Art Publishing House on August 1, 2065438. The writer is Laura Ingerswilder. The book mainly tells the difficult course of Laura's family from Meixi to the bank of Silver Lake.