I read the book. I thought it was well done and quite interesting. Many times this part of Tolkien's life gets about two paragraphs but it's one of the sparks that helped create the literature.
"You can't fight the Enemy with his own Ring without turning into an Enemy" - J.R.R. Tolkien, Letter # 81
Life is not a journey to the grave with the intention of arriving safely in a well preserved body, but rather to skid in broadside, totally worn out & proclaiming "WOW, what a ride!"
Civ II rules after all these years......