You need to get to Hogwart's immediately, and I do mean now, even if it's the middle of the night.
Something has happened, don't ask me what or how, but your mum appeared out of no where and she's fine and alive. No, it's not a joke. I would never ever joke about this. I wouldn't even tell you in writing, but I don't know what you might hear when you come at Hogwart's.