Just a few years earlier, Jews living in Portugal were dragged to the baptismal font and forced to convert to Christianity. Many of these New Christians persevered in their Jewish prayers and rituals in secret and at great risk; the hidden, arcane practices of the kabbalists, a mystical sect of Jews, continued as well. One such secret Jew was Berekiah Zarco, an intelligent young manuscript illuminator. Inflamed by love and revenge, he searches, in the crucible of the raging pogrom, for the killer of his beloved uncle Abraham, a renowned kabbalist and manuscript illuminator, discovered...