"Protect the queen, Ser Gregor"
But the Mountain kept his eyes fixed on his brother, unmoving. Sandor drew his sword, "Come, brother... It's past time we left this shit of a world... You and I both."
As Cersei and Qyburn slipped through the fire and rubble that surrounded them, for a moment the abomination that was once his brother just stood there, but when his hand slowly went towards the sword, the Hound could hear him muffle a curse behind the black helmet.
Sandor didn't wait for him to draw his blade - he charged and sliced right at his sword arm hacking it at the elbow. But there was no blood streaming from it and the giant didn't even flinch. He just casually hit the smaller man with the armoured back of his other hand sending him to the ground. The Hound's teeth and blood spilled over the floor.
"You hit even harder then when we were little...", Sandor said with a bloody smile, as he was getting up, "Or when I was little, at least."
Again, the Mountain responded with an incomprehensible curse coming from behind the helmet padding.
"Oh, fuck off you ugly fucker!" Sandor yelled whith blood spraying from his mouth, "You are fucking dead if you haven't noticed! How can you still hate me when you're dead?!"
He charged again, but this time he ducked in the last instant and went for the Mountain's legs. As they crashed to the ground together the helmet fell off of Gregor's head.
"Say it to my face now, brother!", Sandor screamed reaching for the dagger. He burried it in his brother's throat but again, no blood streamed from the wound. Stunned, he looked at Gregor's undead eyes and now he could hear the words clearly:
"Kill... me..."
But right after that, the remaining hand grabbed Sandor's throat and slammed him to the ground.
The world went dark and spinning. Somehow, the fire was coming from under him now.
"Am I in hell already?", he thought, but then that enormous hand grabbed his throat again. He clutched at it, trying to free himself, but he might as well have been trying to pry open an iron collar.
He gasped for air as the Mountain's disfigured face came closer to his:
"Please... bro... ther...", the creature gasped as though his throat was the one beeing crushed.
As Sandor was losing conscience he thought how all his life Gregor never called him brother. He looked at his undead face and remembered what it looked like when he was a boy, while he still loved him.
But then he remembered fire. Fire, that burned his face when his brother pushed his head in it, fire at the battle of Winterfell and how it destroyed the dead , fire all around them now.
With the last instant of strength the Hound reached out and grabbed a burning beam. He heard the sizzling of skin and smelled his flesh burning but there was no pain, "Fire's not so bad", he thought absently as he pushed the burning log between his and his brother's face.
As the fire engulfed them a thought came to him: "There goes the other side of my face... Who's the faceless man now, silly girl?"
Sandor Clegane died with a smile.