Game Of Thrones: 12 Questions We’re Asking After 'Mother's Mercy'

7. What Is The Mountain?

What. Is. That? The Mountain is back, but what is he? Qyburn has been teasing his return throughout the season, and now he's back in business armed in the gold of the kingsguard. Qyburn explained that he has taken a vow of silence, but that more than likely means he couldn't find any vocal chords lying around, and with that huge helmet covering his head, it's set up for a big reveal at some point, with the only hints of what lies beneath coming from his bruised, blotchy, purple skin and bloodshot eyes. This is some form of zombie Gregor Clegane, and he hasn't undergone all of this for no reason. He's coming back with a big part to play, with a look in Cersei's eyes that suggests she's not entirely changed her ways and will seek revenge.