Melisandre always warned everyone that the night was dark and full of terrors in Game of Thrones – and Sunday night's episode proved just how right she was. "The Long Night"—the third episode in GoT's Season 8—brought the Night King's army of the undead down upon the Northern forces and Daenerys Targaryen's army. Before the battle began, though, a woman in a dark cloak—The Red Priestess herself —arrived at Winterfell. And Melisandre, played by actress Carice van Houten, was instrumental in helping the gang achieve victory. When Melisandre arrived at Winterfell at the start …