Any Lost Books of the Bible?
It depends on if you are a Catholic or a Protestant. Did God hide books from the Protestants or did the Protestants lose them? If the argument is that God doesn't make mistakes, then the Catholic Bible must be God's preferred version as its the older of the two.
http://www.twopaths.com/faq_bibles.htm
"The Roman Catholic and Orthodox Churches continue to base their Old Testament on the Septuagint. The result is that these versions of the the Bible have more Old Testament books than Protestant versions. Catholic Old Testaments include 1st and 2nd Maccabees, Baruch, Tobit, Judith, The Wisdom of Solomon, Sirach (Ecclesiasticus), additions to Esther, and Susanna and Bel and the Dragon which are included in Daniel. Orthodox Old Testaments include these plus 1st and 2nd Esdras, Prayer of Manasseh, Psalm 151 and 3rd Maccabees."
In reality the Catholics and Orthodox churches don't pay much attention to these extra books. Some Protestant churches include them in their Bible for "good reading."
"The Roman Catholic and Orthodox Churches continue to base their Old Testament on the Septuagint.
Yet, the Septuagent found in the 1840's, used today as the basis of the RSV and other translations, had THE SHEPHERD OF HERMAS in them. I don't see a shepherd of Hermas in today's Catholic versions.