When Mary Monson’s trial begins, the prosecution links the fire, the missing gold, and incriminating evidence found among her possessions, while Dunscomb exposes weaknesses in the case and offers alternative explanations, yet despite a relatively impartial charge from the judge the jury unexpectedly returns a guilty verdict and places Mary under sentence of death. Further revelations expose the manipulation of evidence and point toward another woman’s guilt, clearing Mary while also revealing that “Mary Monson” is actually the wealthy married Mildred Millington, Madame de Larocheforte, who had been living under an assumed identity after fleeing an unhappy marriage. With the case resolved, Sarah and Michael Millington marry, John Wilmeter and Anna Updyke also prepare for married life, and Dunscomb begins withdrawing from legal practice, while Cooper closes by underscoring how unreliable juries, sensational publicity, and social prejudice can threaten innocent people even within a system supposedly devoted to justice.