Finished CS Lewis Letters, Vol. 2

I have beed reading this for a few months now. I finished it this morning. There are AMAZING insights into Lewis' life, thought and theology within. Here is one quote...
"On Calvinism. Both the statement that our final destination is already settled and the view that it still may be either Heaven or Hell, seem to me to imply the ultimate reality of Time, wh.[ich] I don't believe in. The controversy is one I can't join on either side for i think that in the real (Timeless) world it is meaningless...." (1946, p.703)

Now, vol 1 or 3???? any input???