One of the biggest Game of Thrones shockers that left us desperate to know what'll happen next—especially after the season 7 finale—was the reveal that Daenerys Targaryen is Jon Snow's aunt. Viewers saw, through Bran Stark's eyes, that Jon's mother was actually Lyanna Stark (Ned Stark's sister) and that his father was Rhaegar Targaryen, Daenerys's brother. What will happen when the newly coupled pair finds out they're related is something we're anxious to see in season 8, but a curious fan theory that Screen Rant reported on suggests there could be yet another secret Targaryen.
The theory is kind of reminiscent of Star Wars, as it suggests that the "secret" Targaryen is actually Jon's twin sister, who is just as much in the dark about her parentage as her brother.
The theory, brought forth by Redditor MikeTysonsLifeCoach, says that Lyanna had twins the day Ned found her in the tower. While Ned took Jon to raise him, she gave her daughter to Howland Reed, and she was raised as Meera Reed. The evidence that backs this up is that both Jon and Meera were born in the same year, and while Meera was brought up by Howland, the whereabouts of her mother are still a mystery.
The pair also have similar features, with their pale skin and long dark hair. Other proof that Howland took in Lyanna's daughter comes from the fact that Howland owed Lyanna a great debt: She defended and saved him during the Tourney at Harrenhal. Howland, like Ned, would have certainly felt obliged to take in the infant and protect her at all costs.
While this theory is sort of a long shot, there is some plausible evidence in its favor. Plus, it would be an epic twist—and we can't count that out, given that this is the final season of Game of Thrones.
Game of Thrones returns for the last time on April 14, 2019.
[h/t Screen Rant]