The Hound 25

Can Sandor make his way to Winterfell and show Baelish how sharp his axe is already?!

https://i.kinja-img.com/gawker-media/image/upload/wzxnt9kt69lz4k28ubsq.jpg

That's a good shout too

Would absolutely love for this to be true! It would certainly add some complexity to the story line. One small flaw though, the letter was delivered by a Bolton soldier Dorne maybe? They're the only people I can think of that would have a bigger army. I may be wrong though