Game Of Thrones Season 7 Spoilers: 17 Scenes We 100% Know Are Happening

12. Highgarden Falls

After killing most of the Tyrell family, you'd think that the Lannisters would lay off Olenna, but the opposite is clearly true. After making an alliance with the Tarlys and bolstering their army, the Lannisters - led by Jaime and Bronn - attack Highgarden.

And they're successful by the look of it, unless they stop mid-table for a casual meeting at the top of the ramparts...

Assuming the Lannister flag here is flying as a sign of their victory, it's not good news for Olenna or her family's ancestral home.

There is some suggestion that this could be Casterley Rock, but we know from the trailers that the Lannister stronghold falls to the Unsullied, and it's unlikely Bronn and Jaime would be there at the time. It wouldn't be defeated easily with them in situ for a start.

So perhaps the Lannisters attack Highgarden as Tyrion shows the Unsullied the back-door into their lightly defended home?