History has a way of repeating itself. In the Sunken City that was once Paris, all who oppose the new revolution are being put to the blade. Except for those who disappear from their prison cells, a red-tipped rook feather left in their place. Is the mysterious Red Rook a savior of the innocent or a criminal? Meanwhile, across the sea in the Commonwealth, Sophia Bellamy's arranged marriage to the wealthy René Hasard is the last chance to save her family from ruin.