This study of the literary relationship between Charles Williams and C. S. Lewis during the years 1936-1945 focuses on the theme of 'co-inherence' at the centre of their friendship. The idea of 'co-inherence' has long been recognized as an important contribution of Williams to theology, and had significant influence on the thought of Lewis. This account of the two writers' conviction that human persons 'inhere' or 'dwell' both in each other and in...