What stopped Mia from taking her own life in the novel, Invisible Hour?

When Mia was in the town of Blackwell working the Community’s vegetable stand, Mia visited the library using the excuse that she needed the restroom. As she walked through the library, she could not help but pick up a book. The book she happened to pick up was inscribed to someone named Mia. Mia took the book with her to the river where she intended to drown herself. Instead, Mia began reading the book. It was so much like her own life that she was inspired to live.