The First World War laid waste to a continent and permanently altered the political and religious landscape of the West. For a generation of men and women, it brought the end of innocence – and the end of faith. Yet for J. R. R. Tolkien and C. S. Lewis, the Great War deepened their spiritual quest. Both men served as soldiers on the Western Front, survived the trenches, and used the experience of that conflict to ignite their Christian imagination. Had there been no Great War, there would have been no Hobbit, no Lord of the Rings, no Narnia, and perhaps no conversion to Christianity by C. S. Lewis.