Sister,
It has come to my attention of your current 'friends.' Mudbloods and traitors? You better behave yourself. Or there will be consequences.
I know that you have met a Narcissa Lupin. Perhaps she has said her name was Sici? She is not as she appears. Lupin is a traitor, a dirty half blood, a werewolf, and Potter's lover.
Interestingly enough for you, she used to be a death eater. Did you know? Of course, you can see that she is no longer permitted as a death eater, in cahoots with muggle lovers and blood traitors.
Destroy your aquaintance with her, Potter, and that vile girl Evangeline Richmond, now. They're all nothing but trouble, and you have no idea how they can destroy everything you have, twist your mind until you have no one but the traitors that made you turn away from me.
Lotus, my little baby sister, know I only do this for your own protection. You have no idea how corrupt this world is. Listen to me, and I promise you all the comfort you wish for. Perhaps I could arrange a husband for you?
And if you are thinking of it, don't try to refuse. I want you to understand me when I say your 'friend' is being watched. Any funny business, and she will die.
Your Brother
I began to see red.
As you can see, Tom isn't the best brother in the world. Did you like the letter? Review please!