Johanna Spyri (1827-1901), a lifelong resident of Switzerland, began to write stories to earn money for refugees from the Franco-Prussian War. "Heidi", her first novel, was also her most successful, though she wrote many other children's books. Spyri's firm belief in the natural innocence of children and their ability to grow up into decent, caring adults if left to their own devices was remarkably similar to that of her Danish contemporary, Hans Christian Andersen.