Game Of Thrones: 10 Things That Will Definitely Happen In Season 7
3. Sam Will Learn How To Make Valyrian Steel
You'd be forgiven for wondering what the significance of Sam Tarly's scenes were in season six. After all, all he really seemed to do was get sea sick, piss off his dad and then take up a job in a library. But in reality, there was much more to it than that.
For a start, remember that sword he stole from his dad? That was important, because it's made from Valyrian steel, one of the few materials known that can kill White Walkers. This is significant because Sam is one of the only people in Westeros who has actually managed to off one of the frosty bastards - this combination of knowledge and experience is insanely valuable.
To top it all off, Sam is now training to be a Maester in Oldtown, and has a huge wealth of knowledge at his disposal. What all of this means is that Sam Tarly will be key to figuring out a way to combat the White Walkers, and the most likely method will be through the creation of weapons made from Valyrian Steel. He's got books, he's got the material itself and he's got experience. Expect it to happen soon.