Dogtanian and Pip are indulging in a little horseplay when they run into a beautiful lady. She turns out to be none other than Milady, and tricks Dogtanian into losing his nice new dagger. He manages to snatch it back and he and the Three Muskehounds pursue Milady on horseback, but she gets away. Richelieu, meanwhile, has a cunning plan to disgrace the Queen by persuading the King to hold a ball at which his wife should wear her diamond studs, now in England in Buckingham's possession. He dispatches Milady to London to get the jewels. Juliette begs Dogtanian to travel to England and retrieve the diamonds in time for the ball. He seeks permission from Treville, who agrees on condition that the Three Muskehounds accompany him.