The mythology of the Georgia Guidestones begins to crack. As journalists pursue the mysterious man known only as “R.C. Christian,” a hidden past starts to emerge—raising unsettling questions about the ideas that shaped the monument.   If you like this series, you’re only scratching the surface. Go to ⁠ajc.com⁠, become a subscriber, and find out for yourself. Learn more about your ad choices. Visit megaphone.fm/adchoices