 However, most of Lagerlöf's stories were set in Värmland.In 1902, Lagerlöf was asked by the National Teacher's Association to write a geography book for children.She wrote "Nils Holgerssons underbara resa genom Sverige" ("The Wonderful Adventures of Nils"), a novel about a boy from the southernmost part of Sweden, who had been shrunk to the size of a thumb and who travelled on the back of a goose across the country.