When her guardians die, Heidi must live in the mountains with her grandfather, Alm-Uncle, who does not like people. He slowly changes and becomes more caring because of Heidi. Then, Heidi must move to Frankfurt, Germany to be the friend of Clara, a girl who is sick and cannot walk. Clara’s grandmother encourages Heidi to learn to read, and she also learns about God. She becomes very homesick, and a kind doctor says that she must return home to her grandfather. Later, Clara visits Heidi in the Alps and becomes strong enough to walk.