was during 1944 that, leaving the loose ends and perplexities of a war which it was my task to conduct, or at least to report, I forced myself to tackle the journey of Frodo to Mordor. These chapters, eventually to become Book Four, were written and sent out as a serial to my son, Christopher, then in South Africa with the RAF. Nonetheless it took another five years before the tale was brought to its present end; in that time I changed my house, my chair, and my college, and the days though less dark were no less laborious. Then when the 'end' had at last been reached the whole story had to be revised, and indeed largely re-written backwards. And it had to be typed, and re-typed: by me; the cost of professional typing by the ten-fingered was beyond my means. "为我讲解这一段话