Natapon (tetracarboxylic)

At the Limes the position of affairs became more terrible every day for Margaret. Mr. Drayton was always sullen, silent, and watchful, and the incessant watchfulness broke down her nerves. She had long fits of crying, without herself being aware of it. The women-servants had left, and she could not replace them; the one woman who came by day to clean and cook (and could do neither) was the only one besides her nurse, and Margaret lived in dread of her leaving her.