FAMILY RELATIONSHIP
Scrooge is described as the brother of Fan, who comes to bring him home for the holidays, indicating a close family relationship.
SCROOGE
'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.