George E Vandeman who was a Christian minister who utilizes Science and Nature as analogies with Biblical truth. This book begins with the story of an atomic accident, offers a surprising account of a day hijacked in the Dark Ages, and warns of an approaching collision of loyalties when bigotry will return and no man can buy or sell unless--. For anyone sincerely searching for Biblical truth concerning the sabbath; start here. Won't leave you hanging. Brother Vandeman had a way with words, and is greatly missed. I could not put this book down until I finished it. It is a compelling book if you are searching for Biblical truth. Vandeman has done his research.