Mme. Rubens Chatte is a pink overweight Persian cat with green eyes and purple eye shadows. She has a white stole around her neck and a beauty mark shaped like a star beneath her left eye and whiskers.
Her "brother" Meowrice takes advantage of the Mewsette's naivete and he puts her in the care of her. She promises to turn Mewsette into a dainty debutante known as "The Belle of all Paris". Unbeknownst to Mme. Rubens-Chatte and Mewsette, Meowrice is grooming her to be the mail-order bride of a rich American cat in Pittsburgh known as "Mr. Henry Phtt".
Training does not go well. Just as Mewsette is about to give up and return to the farm, Meowrice takes her out to see the cat side of Paris, the Eiffel Tower, the Champs-Élysées and the Mewlon Rouge and then take a buggy ride back home. Reinvigorated, Mewsette returns to her studies. Mewsette finishes her training and is now lovely enough to impress even Meowrice, who commissions a series of paintings of her by such famous artists as Claude Monet, Henri de Toulouse-Lautrec, Georges Seurat, Henri Rousseau, Amedeo Modigliani, Vincent van Gogh, Edgar Degas, Auguste Renoir, Paul Cézanne, Paul Gauguin and Pablo Picasso, so that he can send them to Mr. Phtt. Meowrice quietly writes a check to pay Mme. Reubens-Chatte (using disappearing ink, so that the check is worthless), and takes Mewsette to his hideout in Notre Dame. When Jaune Tom and Robespierre arrive, they have been aided by Madame Ruebens-Chatte, who is irritated that her own "brother" double-crossed her and tears up the worthless check.