Jon: I have to meet with her. There’s dragonglass in that cave! We need it to stop the army of the undead!
Sansa: How are you going to convince her the army is real?
Jon: ….
Sansa: Here, take this paint with you. Draw her a picture. Maybe inside the cave, like it’s something from thousands of years ago.
Jon: *scoffs* It’ll never come to that.
Also Jon: *scratching on cave wall three weeks later*