Watkins, Duff.  "The Screwtape Letters and Process Theism."  Process Studies 8, no. 2 (Summer 1978): 114-8.

Abstract

The Screwtape Letters by C. S. Lewis is a collection of fictitious epistles from a suave, professional, and insidious devil to a younger, inexperienced, but just as insidious fellow demon.  The purported author of the letters is Screwtape, an undersecretary in the department of temptation, who offers sagacious advice to his young nephew wormwood, a "junior tempter."  Though Lewis's personal theological perspective is rarely considered in terms of A. N. Whitehead's process philosophy, Lewis's portrait of "the enemy" (i.e., Jesus Christ) in The Screwtape Letters is more than a little similar to the rudiments of the Christologies espoused by John Cobb, Peter Hamilton and others.  In short, "the enemy" as presented in The Screwtape Letters functions quite well in terms of process thought.  [Abstract from The Philosopher's Index]