Synopsis

Just east of San Francisco Bay rise the Berkeley Hills Walls—remarkable remnants of a colossal stone structure extending for more than fifty miles. These sections of wall stand as high as six feet in places, meticulously built from tightly fitted limestone boulders. Scott finds himself captivated by the mystery surrounding their origin and intended use; no one knows who erected them or why. The only comparable example of such an extensive, ancient, manmade barrier is China’s Great Wall. Could As