'Game of Thrones' Fan Theory Has Arya Stark Making a Killing in the Season 6 Finale

Warning: Game of Thrones spoilers ahead.

What is Arya Stark up to? We haven't seen her for an entire episode, but with the Season 6 finale of Game of Thrones approaching it's probably a safe bet to assume we'll catch up with her before it's over with. Just how she'll return is another matter, but there's an interesting fan theory out there that started on Reddit, and expanded on The Huffington Post. According to this theory, if you've seen the trailer for the finale, "The Winds of Winter," you've already seen Arya.

Here's what he's referring to, in case you don't remember. The Red Wedding involved breaking a tradition called "guest right." Those who break "guest right" are supposedly cursed to be killed by their children. Tywin Lannister and Roose Bolton have both been killed by their sons, leaving only Walder Frey.

Arya Stark definitely wants Walder Frey dead, she even mentioned it earlier this season, but she's not one of Walder Frey's children. Is there a way that she could kill him, and sort of fulfill the curse? According to the theory put forth by Huffington Post, yeah there is.

We know from Season 5 when Arya killed Ser Meryn Trant that she has some talents for disguise. Now let's go back to that trailer knowing what we know now. Here's Walder Frey at a feast, standing between his "sons."