In the tradition of Exodus and Captain Corelli's Mandolin, comes a sweeping two-tiered family saga with a modern story concerning ace reporter Rudy Styne, who runs into his look-alike at an airport in Munich while tracking a master computer hacker, and a back story about the Maxwells, a turn of the 20th century Jewish family struggling to build the most prestigious airline in Bavaria. The modern story begins, where Book 1, RASPUTIN'S NEPHEW ends, with the marriage of Rudy Styne to his alluring (and very pregnant) girlfriend Chessie Barnsworth. At the wedding, an ancient Jewish man, Abe Maxwell, appears who apparently is somehow related to Styne. As the reader will come to find out, in DOPPELGANGER and its sequel, CRYSTAL NIGHT, Abe Maxwell is also tied to the back story which is somehow related to Rudy Styne's German look-alike. Concerning the back story, Seifer brings this vital Maxwell family alive as we watch two brothers use their savvy to advance their little airline empire in a hostile environment, with the elder brother, Elias, handling the business end, by in part, assimilating into the Christian community, and the younger brother, Simon, master mechanic and daredevil, handling the production end, constructing aeroplanes for their own airline and also motors for Count Zeppelin. As we watch the century advance through the family's eyes, we also watch Simon enter the very first aerial competitions where he races against such European aeronauts as Sopwith, Bleriot, Fokker and Junkers to build the fastest and most efficient flying machine. But greater forces intervene as Simon finds himself caught up in the Great War as an ace pilot for Germany flying alongside such heavyweights as Hermann G ring, his boyhood friend and later day Nazi party leader, the Blue Max, the Red Baron and Ernst Udet, the greatest surviving German pilot from this first World War, as they battle against the very French and British colleagues Simon had raced just two years before. DOPPELGANGER will definitely appeal to anyone interested in the cause and general happenings of WWI, how aeroplane technology advanced the war as well as modern day Internet security concerns. The author offers extremely well-researched factual information throughout.... What I particularly liked was Marc J. Seifer's style of writing and I am looking forward to reading Part III, the sequel CRYSTAL NIGHT of his Quadrilogy.... I found that I became completely immersed in the subject matter and totally absorbed with the goings-on of the multitude of colorful characters. I could not wait to find out what would happen next Online Book Reviewer. Wall Street Journal and USA Today best selling author of WIZARD: THE LIFE & TIMES OF NIKOLA TESLA, BIOGRAPHY OF A GENIUS is Marc J. Seifer, Ph.D. Star of the 5-part mini-series THE TESLA FILES available on HuLu, Dr. Seifer has been hailed as a great story teller. His creation of the RUDY STYNE QUADRILOGY is the result of over 30 years research and writing. Embedded in each tale are real events spanning such topics as psychic warfare, the history of flight, flying with the Red Baron during WWI, the real history of the Miracle at Dunkirk and the understanding of the onset of WWII from both the Jewish and German perspective, forensic handwriting investigation and the details of what it is like for an expert to testify in court. The contemporary side of each story follows our hero, Rudy Styne, ace reporter for Modern Times Magazine as he seeks to solve a murder in each case. Starring in the 5-part mini-series THE TESLA FILES and featured in The New York Times, Wired Magazine on Coast to Coast Radio, the BBC, and American Experience, Marc J. Seifer is a graduate of the University of Chicago and Saybrook University. He is a retired psychology professor from Roger Williams University.