The Blue Castle - Chapter 25

We finally find out the momentous decision Valancy came to. She asks Barney Snaith to marry her, and considering her condition of having only some weeks or months to live, says yes. She hands him a letter to give to her family if - when - something happens to her, to ensure they find out the truth about her ailment rather than thinking something happened to her because of Barney. And with that decided, they plan to get married the next day.