"Heidi osaa käyttää oppiansa: Kertomus Alpeilta" by Johanna Spyri is a children's novel published between 1880 and 1881. Five-year-old Heidi is sent to live with her reclusive grandfather high in the Swiss Alps, where she befriends a young goatherd and his blind grandmother. Just as she grows to love mountain life, Heidi is torn away to Frankfurt to become companion to a wealthy invalid girl. Homesick and restrained by strict rules, Heidi must find her way back to the mountains she cherishes—and help heal those around her.