If you're going to read only one novel by the prolific American writer Louis Auchincloss, this is the one to read. It is a minor modern classic and represents Auchincloss's best work during what I regard as his prime period. The Rector of Justin tells the life story, from schoolboy to death at age 85, of Frank Prescott (Dr. Francis Prescott), rector/headmaster/founder of the exclusive New Engla…