Few works testify the essence and the creative ability
of their author as well as The Screwtape Letters,
perhaps the most ingenious and underestimated
of C. S. Lewis’ fiction books. With razor-sharp wit and
clever satire, Lewis uses the imaginary correspondence
between two demons to point out both virtues and flaws
in the Christian faith, as well as to expound on theological
questions from the Adversary’s point of view.