The Adventures of Tintin #21: The Castafiore Emerald

Captain Haddock and Tintin are walking through the countryside when they come across a Roma community camped in a garbage dump. They investigate and upon learning that the community chose that site on account of being forbidden by the police to use any other location, the Captain invites them to his grounds of his estate, Marlinspike, over the objections of his butler Nestor. Shortly afterwards, Bianca Castafiore, famous opera Diva and scourge of the Captain, decides to invite herself to Marlinspike for a holiday. All manner of mayhem ensues.