Bellatrix Lestrange

The mudblood's confessed to stealing the wand from Buckingham, was learning magic all on her own, apparently. So she says.

Now, whether Draco has a hand in this or not remains to be seen. Let me speak with him. I'll convince him that if he confesses to having been seduced by the mudblood, and at least "entertained" ideas about teaching her magic, that we will sort this out amongst ourselves. He'll believe me.

I'll give you the mudblood. I'm done with her.

Let my daughter watch - she still has much to learn.