Final answer:
The provided excerpts do not contain the necessary context to determine what Mrs. Ansley reveals to Mrs. Slade at the end of their story.
Step-by-step explanation:
The question appears to be related to the story where two characters, Mrs. Ansley and Mrs. Slade, have a significant conversation towards the end. None of the provided excerpts directly answer the student's question about what Mrs. Ansley reveals to Mrs. Slade at the end of their story.
However, the answer to this question is most likely related to a pivotal plot point or a significant twist in their relationship, which is common in literary narratives.
Since the provided passages do not contain information about Mrs. Ansley revealing something to Mrs. Slade at the end, we cannot confidently determine whether she reveals her plans for a vacation, her intention to write a novel, the contents of a note, or her desire to mend their friendship without additional context.