The World's Sixteen Crucified Saviors has been out of print but sought after for many years. A small part of it was reprinted in The Book Your Church Doesn't Want You to Read in 1994. Many people are unaware that before Christianity there were 15 other religions that also had a savior who died for their sins, then arose from the dead.
The World's Sixteen Crucified Saviors
Adventures Unlimited Press
Christianity Before Christ
Mind, Body & Spirit