The Historical Jesus and the Mythical Christ by Gerald Massey

Massey was an Egyptologist who wrote a tremendous body of scholarly work. He concluded that much of Christianity and its belief structure was rooted in ancient Egyptian mythology. At first this sounds strange, but a large number of people have agreed, including some of the most respected scholars and researchers in the field of religious studies. If you want a different and compelling view of Christianity and its roots, this is the book to read.