This is another old book I’ve recently read, though, unlike The Bones of St. Peter, it’s still in print. The author, Karl Keating, is a Catholic apologist, and the founder of Catholic Answers. His book was published in the late 1980’s, at a time when the word “fundamentalist” still meant something other than “people whose religious fervor makes me uncomfortable”. At that time there were self-identified fundamentalists who devoted themselves to “proving” that Catholicism consists mostly of un-Christian additions to the simple message of the New Testament. Keating’s goal as an apologist was to show that the common fundamentalist objections to Catholicism were unfounded.
The book is somewhat dated; most of the attacks on Catholicism I see these days are coming from other directions. But the basic facts about the history of the Faith haven’t changed, and from that point of view I found the book to be very interesting.