50 Years in the "Church" of Rome - Charles Chiniquy
1st edition 1886
This is an absolute must-read for Roman Catholics written by a man 50 years in the RCC and 25 years in the Roman Catholic priesthood.
free online - 50 Years in the "Church" of Rome
http://www.biblebelievers.com/chiniquy/index.html
From amazon
http://www.amazon.com/exec/obidos/ASIN/0937958212/gordenandjackism
Also by Chiniquy
"The Priest, the Woman and the Confessional"
http://www.biblebelievers.org.au/priest.htm