Kenneth Morris was a Welsh author and theosophist. He lived in California from 1908 to 1930 as a member of staff of the Theosophical Society headquarters at Point Loma. The last seven years of his life were spent back in his native Wales, during which time he founded seven Welsh theosophical lodges. In the verdict of Ursula K. Le Guin, Morris appears as one of the three master prose stylists of fantasy in the 20th century, together with E. R. Eddison and J. R. R. Tolkien. The Crest-Wave of Evolution is a course of lectures given to the graduates' class in the Raja-Yoga College, Point Loma.