Why did she provide a B.C. year when asked what year it was? (Living at that time, one would not know that it was before the common year "1"). How did she know her own eye color when asked to look at and describe herself while "inside" herself in a past life? These are just two of the questions that arose in my mind when reading the book, and the author never even recognized the issues on his own. I have serious doubts about the author's claim that before doing prenatal regressions on patients, he lacked belief in paranormal or supernatural phenomena. In addition, it seems likely that "Catherine" is a composite character, not a single individual. The book has a very serious credibility gap. Notwithstanding all that, the book is very entertaining, as perhaps some form of reincarnation is possible.