The Eloquence of Blood — Judith Rock

Christmas in Paris, 1686. The spirit of the season is shattered when Martine Mynette is murdered while trying to prove that she is the adopted daughter of the last surviving Mynette heir and thus claim her inheritance-money that the family otherwise intended to go to the Jesuit school, Louis le Grand.

Now, with Jesuits being implicated in Martine's death, rhetoric teacher Charles du Luc will not rest until he finds her murderer...