The tunnel thru the air : $b or, Looking back from 1940

"The Tunnel Thru the Air, Or, Looking Back from 1940" by William Delbert Gann is a science fiction novel written in 1927. The author claimed the book contains a "valuable secret, clothed in veiled language," which some traders believe encodes financial astrology techniques. The story follows Robert Gordon from his birth in 1906 through a lost love that drives him to become history's greatest inventor, culminating in an imaginary war from 1930 to 1932 where his inventions help America triumph. (This is an automatically generated summary.)