Be warned: here be SPOILERS. Catch up on the HBO series before proceeding.
Daenerys Targaryen has entered into a pact with Jon Snow to fight the White Walkers, just as the two have struck up a romance. The army of the dead has breached the Wall with a fearsome ice dragon. Cersei Lannister still plays political games, unaware that the greatest threat to her power is one Aegon Targaryen, the very much living true heir to the throne.
With Game of Thrones nearing its exciting conclusion, fans are realizing just how many plot lines were hinted at seasons ago. Some of these clues were pretty subtle, so uncovering the hidden foreshadowing in Game of Thrones is outrageously rewarding for eagle-eyed viewers. There are lots of things you never noticed in Game of Thrones, from foreshadowing of major deaths to tiny hints about characters' destinies. The HBO drama isn't for the casual TV watcher; even a seemingly throwaway line can have major implications for the world of Westeros.
Are there instances of Game of Thrones foreshadowing you missed, or did you see all of these twists coming a mile off?
When Bran Stark is traveling with Hodor and the Reeds, he tells a lovely story about a Night's Watchman who once got revenge by killing a king's son, baking him into a pie, and feeding it to the king. He says the Rat Cook was cursed afterward because, "he killed a guest beneath his walls. That's something the gods can't forgive."
Midway through Season 3, Arya Stark meets Melisandre. In her typical creepy Red Priestess way, Melisandre grabs Arya and looks into her eyes, telling her what she sees there: darkness and eyes of all different colors, "eyes that [Arya] will shut forever."
This actually has multiple layers of foreshadowing. First, there's the darkness: Arya's going to become a killer. Then, there are the eyes: Arya will become a Faceless Man and take on others' appearances. It also means she'll kill lots of people, shutting their eyes forever.
In the very beginning of Season 1, Ned Stark and his sons come across a dead direwolf, killed by a stag. The direwolf is the symbol of House Stark and the stag is the symbol of House Baratheon. This foreshadows Ned's eventual death at the hands of Joffrey Baratheon (even though he's secretly really a Lannister).
While picking out a necklace in preparation for her wedding to Joffrey Baratheon, Margaery Tyrell jokes she'll end up with a "string of sparrows" around her neck if Joffrey has any say in the matter.
In many ways, the Sparrows – the militant religious zealots who essentially commandeer King's Landing – become a noose around Margaery's neck. They imprison her for lying about her brother Loras's sexual dalliances, and ultimately seal her fate by putting her on trial in the Great Sept when Cersei Lannister sets the place ablaze with wildfire. She dies surrounded by Sparrows.