Thoros of Myr: What do you see?

Sandor Clegane: Logs burning.

Thoros of Myr: Keep looking. What do you see?

Sandor Clegane: Ice. A wall of ice. The Wall.

Thoros of Myr: What else?

Sandor Clegane: It's where the Wall meets the sea. There's a castle there. There's a mountain. Looks like an arrowhead. The dead are marching past. Thousands of them.