First published in 1867, ‘Unspoken Sermons Series I, II, and III’ is a series of sermons by George MacDonald, a Scottish author, poet, and Christian minister. He was a pioneering figure in the field of modern fantasy literature and the mentor of fellow writer Lewis Carroll.MacDonald's theology, though sprinkled liberally throughout his reasonably significant number of books, is perhaps nowhere more noticeable than in Unspoken Sermons. These sermons, though by no means among the most popular of MacDonald's work, have had a theological influence from their first impression. That influence is presumably most notable in C.S. Lewis who called MacDonald ‘my master’ and of Unspoken Sermons said, ‘My own debt to this book is almost as great as one man can owe to another.’