One day, however, Heidi's Aunt Dete arrives to take Heidi away again, saying that a wealthy family in Frankfurt, Germany, wants Heidi to come live with them. Heidi's grandfather reluctantly lets her go. Heidi arrives at the house in Frankfurt, where she learns she's supposed to become the companion of a wealthy but invalid girl named Klara. Klara's Governess and guardian Fräulein Rottenmeier disapproves of Heidi's simple country ways, but Klara likes Heidi and insists that she stays. Heidi brings joy into Klara's life, especially when she gives Klara a basket of kittens as a present. When Rottenmeier discovers the kittens, Heidi is locked in the rat-infested basement.