Not that it would appeal to many who are grounded in logic, but the other novel I re-read from time to time is Taylor Caldwell's, “The Listener”. A wonderful gift on my 17th birthday from my mother. Books were always given in my family at Christmas, together with slippers, robes and a good nightgown (in case you had to go to the hospital) — ;-)
Have you ever read Taylor Caldwell's The Devil's Advocate?