The End of the Magi by Patrick W Carr
Following his vision of the coming Messiah, the prophet Daniel establishes a group whose duty is to track the days until the promised arrival. Centuries later, a young magus acolyte flees a death sentence and hides among a traveling caravan. But he cannot forget the awaited star and the assurance that things will never be the same.
384 pages, softcover from Bethany.