Little Heidi, the Geißenpeter and Alm-Öhi, Klara in her wheelchair and the strict Miss Rottenmeier: Every child knows them. The girl takes her young readers to her mountains and to the people there. Johanna Spyri described her adventures in two famous books that appeared in 1880/81. They tell the stories of Heidi’s experiences in the Swiss mountains and with the Sesemann family in Frankfurt. This volume covers the entire Heidi novel world in the original.