Game of Thrones Season 6: The Best Theories and Predictions
02: Cleganebowl
Next up is one of our favourite fan theories, Cleganebowl. If it ever happens, it will likely be in season 6. The theory supposes that the Clegane brothers: Sandor “The Hound” and Gregor “The Mountain” will end up fighting each other in an epic showdown to decide the fate of Cersei Lannister.
How? First, some backstory; The Hound’s face was scarred because, when the brothers were young, The Mountain pushed The Hound’s face into a fire. Ever since then The Hound has carried a phobia of fire, and has hated his brother for it.
The last we saw of Gregor was when he was poisoned during his fight with Oberyn Martell. The creepy Maester Qyburn promised to keep him alive, but said that the process may change him a bit. All we see of him is writhe under a sheet while being experimented on. At the end of season 5, we are introduced to the newest member of the Kingsguard, who is likely the reanimated Gregor.
At the end of season 4, The Hound was seemingly left for dead by Arya. Fans of the books have come up with the Gravedigger theory, which claims The Hound is rescued by a reputed healer known as the Elder Brother.
Brienne of Tarth hears about The Hound’s survival when meeting the Elder Brother in a place called the Quiet Isle. Brienne finds The Hound’s horse, which is famous for being essentially un-tamable, and then finds a man with a similar body and wounds to The Hound, who is digging graves. The theory is that The Hound is now part of the Faith as Sandor Clegane, having left his persona behind.
Later in the books, when Cersei gets arrested by the Sparrows, she chooses trial by combat. Her representative will be the The Mountain, and so the theory goes, the Faith’s representative will be the newly pious Sandor.
So, basically, Cleganebowl, get hype.
(taken from :
http://www.gamespot.com/gallery/game-of-thrones-season-6-the-best-theories-and-pre/2900-627/3/)