The extreme disquietude of the old housekeeper's manner in saying this, her broken words, and her wringing of her hands make a powerful impression on Mrs. Bagnet and would astonish her but that she refers them all to her sorrow for her son's condition. 
The extreme disquietude of the old housekeeper in saying this, her broken words, and her wringing of her hands make a powerful impression on Mrs. Bagnet, but she assumes they are through sorrow for her son's condition. 