Heii's Years of Wandering and Learning (German: Heidis Lehr- und Wanderjahre), usually abbreviated Heidi, is a novel about the events in the life of a young girl in her grandfather's care, in the Swiss Alps. It was written as a children's book in 1880 by Swiss author Johanna Spyri. Two sequels, Heidi Grows Up and Heidi's Children, were not written by Spyri but by her English translator, Charles Tritten.