The Outcast Dove: a Catherine Levendeur Mystery (Catherine Levendeur Mysteries) First edition

Catherine Le Vendeur's curiosity and passion for justice have sometimes led her to solve grisly murders and brave horrors... but this time the threat is to those she loves.
Catherine's family business relies on her cousin Solomon to negotiate the treacherous path to riches. The fact that Solomon is her cousin is secret, however, because he's Jewish--and if their family connections were discovered, it could mean ruin or death. When Solomon's father, who rejected Judaism for the more socially acceptable Christianity, asks for his help, Solomon must come to a decision about who he is, and where he really belongs.