the devil you know (гет)

She moves softly, quietly, with the care of a mouse, but he still hears the patter of her boots against the floor, the sound of fabric shifting as her cloak sways with her movements; the whistle as something cuts through the air with violent trajectory towards his head. He reaches behind himself and catches the staff before it can crack into the base of his skull; the skin of his palm stings with the force, and when he turns to glance over his shoulder, eyebrow raised, he spies a disappointed frown cross Arya's face before she smothers it.
"A girl would give her comrade a concussion before the dead arrive," he observes wryly, releasing the staff and turning back to face the window once more.

Or, the one where a man who has been named Jaqen H'ghar comes to Winterfell as a representative for the House of Black and White in the war against the White Walkers; and with regards to the matter of losing her virginity, Arya chooses the better of her two options.