Almost no one agrees on who came to that stable in Bethlehem two thousand years ago, how many came, where they came from, whether they were sages or kings, and what they gave to that special child. The Gospels don't agree, and neither do any other sources written within a hundred years of the birth of Jesus. Unraveling that mystery not only sent Roberts on an adventure in the footsteps of the Magi that took him from Tehran to Bethlehem, but revealed...