Hydra,
It has been decided that you will, per your and Harry's suggestion, be spending a good portion of your Christmas holiday at the castle. You will leave on the Hogwarts Express tomorrow so that you can spend time with your Father and brother in New London. On Sunday evening we will all attend the Christmas Party together. On Monday morning, you will return to Hogwarts with your Uncle Rabastan, who will again bring you back home for Christmas Day, returning to the castle with you when celebrations are over. Of course, we will all be viewing the corpse on the same day that our Lord and Harry view it.
I compliment you in sacrificing the amusements and comforts of your home in favour of assisting Harry while he studies. From his letter, it seems that Harry has come to think of you as an indispensable friend and confident, which is of course key in securing a future alongside him. In truth, I had no idea that he held you in such esteem, and I was pleased to learn it.
Mind that you do not make a great show of your privileged position, or use it to earn extra gifts, sympathy, or other niceties from those who would be inclined to feel sorry for you, up there in cold Scotland instead of playing with your cousins and mates in New London. I think you know exactly who I speak of, hmm?
I will see you in a few days, child.