An American niece of Mrs. Carbuncle, with whom she lived and who trapped her into an engagement with Sir Griffen Tewett whom she hated. On the day of the wedding she refused to go on with it, and went mad.

"She looked as though she were four-and-twenty but in truth she was no more than eighteen ... tall, and was as one used to command, and walked as though she were a young Juno. Her hair was very dark - almost black--and very plentiful. Her eyes were large and bright, though too bold for a girl so young.... [her] complexion was certainly marvellous ... the colour would go and come and shift and change with every word and every thought" - The Eustace Diamonds.