There’s another theory which suggests at Jon Snow being the last hero. This assumption is different from that of Azor Ahai. The last hero was the last survivor of his unit, which was rampaged by magical creatures.
It was the last hero who went on to start the Night’s Watch. Since Jon Snow returned from death after the brutal attack on him in Season 5, there is speculation that his condition will mirror the incidents that the last hero witnessed.
Game of Thrones Season 7 will also explore the romantic relationship between Missandei (Nathalie Emmanuel) and Grey Worm (Jacob Anderson). Even though Grey Worm was a part of the Unsullied, who undergo castration, it didn’t stop him from being attracted to Missandei when he saw her taking a bath in the river.
The two have spent a lot of time together in Daenerys’ absence, and according to The Independent, they will take their relationship further in Game of Thrones Season 7. Reports suggest that there will be some intimate scenes involving Missandei and Grey Worm.
The two might decide to take a step in their relationship before Grey Worm leads the Unsullied in a siege against the Lannister stronghold, Casterly Rock.
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