This collection of seven essays show C.S. Lewis at his most vigorous, defending his vision of a full-blooded, orthodox Christianity in his matchless prose style. The efficacy of prayer, 'theologians who claim to see fern-seed and who can't see an elephant ten yards away in broad daylight', the difference between genuine forgiveness and mere excusing, whether there is life on other planets and if so, what our attitude as Christians should be... the brilliance and force of C.S. Lewis's thinking delights and challenges.