Zoroastrian practitioners / believers were not much involved in the research going into Three Testaments: Torah, Gospel and Quran. Fifteen percent of the text is written by me, and about 8% of the total is devoted to the Z factor, with substantial input from a growing body of scholars of Zoroastrianism, which is different than Zoroastrian scholars. This 8% garnered possibly more attention than it deserved from reviewers, but the hesitancy about engaging the Zoroastrian community itself was apparently ill-founded, according to Zoroastrian readers to date.