George MacDonald (1824-1905) was a Scottish author, poet, and Christian minister. Though no longer a household name, his works (particularly his fairy tales and fantasy novels) have inspired deep admiration in such notables as W. H. Auden, J. R. R. Tolkien, and Madeleine L'Engle. C. S. Lewis wrote that he regarded MacDonald as his "master". Even Mark Twain, who initially despised MacDonald, became friends with him. MacDonald grew up influenced by his Congregational Church, with an atmosphere of Calvinism. But MacDonald never felt comfortable with some aspects of Calvinist doctrine. Later novels, such as Robert Falconer (1868) and Lilith (1895), show a distaste for the Calvinist idea that God's electing love is limited to some and denied to others. Especially in his Unspoken Sermons (1867-89) he shows a highly developed theology. His best-known works are Phantastes (1858), At the Back of the North Wind (1871) and The Princess and the Goblin (1872), all fantasy novels, and fairy tales such as - The Light Princess (1867), The Golden Key (1867), and The Wise Woman (1875). At the Back of the North Wind is a children's book by George MacDonald, published in 1871. It is a fantasy centered around a boy named Diamond and his adventures with the North Wind. Diamond travels together with the mysterious Lady North Wind through the nights.