Joscelyn Penhallow is estranged from her husband, Hugh Dark because of her untimely passion for Frank Dark. She lives with her mother and aunt, but longs to be out of the stifled valley in Hugh Dark's estate, Treewoofe.
She has red-gold hair and rose-red lips. She is known for her aloof pride, unlike her harum-scarum sister Milly. Spanish blood runs in her family.