"I'll go back," you declare heroically. "Your bravery is magnificent," says Paul, eyes shining. You plunge over the 49th parallel, donning your snowshoes and loading your moose hunting gun.
Eight days later you find Laura, her face frozen in a horrible rictus. She's not dead, it was just cold. Her hair has turned pure white and she doesn't recognize you. You manage to get her over the border and you devote yourself to her care. Eventually some of her former vivacity returns, but forever after that she believes she is a gumshoe and she always wears a trenchcoat and calls you "sister" and drinks bourbon from a flask and refers to punches as "the long hot kiss at the end of a fist", which gets old.