Later, Lady Windermere, in spite of her earlier reluctance, decides to depart the house at once for Lord Darlington, and leaves a note to that effect for Lord Windermere. Mrs. Erlynne discovers the note and that Lady Windermere has gone, and is curiously worried by this revelation. While reading the note, a brief monologue reveals that she is in fact Lady Windermere's mother and made a similar mistake herself twenty years previously. She takes the letter and exits to locate Lady Windermere.