"Heidi" by Johanna Spyri is a work of children's fiction published between 1880 and 1881. Five-year-old Heidi is sent to live with her reclusive grandfather high in the Swiss Alps, where she finds joy among the mountains and befriends a young goatherd and his family. When her aunt takes her to Frankfurt to be companion to a wealthy invalid girl, Heidi must navigate city life while longing for her mountain home. This beloved tale explores themes of friendship, faith, and the healing power of nature.