FAMILY RELATIONSHIP
Fan is described as Scrooge's sister, and she comes to bring him home, showing a familial bond.
FAN
'I have come to bring you home, dear brother!' said the child, clapping her tiny hands, and bending down to laugh. 'To bring you home, home, home!' 'Home, little Fan?' returned the boy. 'Yes!' said the child, brimful of glee. 'Home for good and all. Home for ever and ever.' 'You are quite a woman, little Fan!' exclaimed the boy.