Horatia, learning that Pelham has not recovered her brooch is miserable and anxious because she wants to act on her feelings for her husband, but can't while she still believes Lethbridge has the brooch in his possession. She receives an anonymous note saying that her brooch will be restored to her if she attends Vauxhall pavilion at midnight. Horatia, thinking Lethbridge sent the note, makes the meeting with Pelham and Mr Pommeroy hidden nearby in the bushes. She is surprised when the Earl arrives and returns her brooch to her. He confesses his feelings for her and she affirms that they are reciprocated.