Where is Harry sent to live, why does she go there, who is she going to live with and what is her new home like?

Angharad Crewe, known as Harry, is sent to Istan in the Province of Daria, following the death of her father. Lady Amelia and Sir Charles Greenough have agreed to take in the young orphan, and although her new home is much wealthier than her previous home, she is attempting to make the best of things.