The Holy Grail of Eris

Betrayed by her fiancé's lover and condemned to a public execution, Constance Grail—an unpretentious viscount's daughter famed for her candor—faces death until a mysterious voice offers deliverance. Scarlett Castiel, a noblewoman long presumed dead, might be her sole lifeline. United by improbable circumstance, these two forge an alliance to expose a sinister conspiracy at the core of high society, where treachery, secrets, and power collide.