act 3 ,ann realized there was only one way kate would let larry go what did she do ?

Ann removes a letter from her pocket. It is a letter from Larry, which she never intended to show anyone unless it was necessary to allow her and Chris to get married. He wrote it right before he disappeared. As Mother reads the letter, she begins to moan, and Ann insists that the circumstances forced her to show the letter, since Mother would not believe Ann's word.