"I will see you tonight."

He pulls the door open, revealing the stone walls of the tunnel that leads down into the cave, just inside the portal.

Lan Wangji gives him a faint, barely-there flicker of a smile, and leaves the inn, allowing the door to swing shut behind him as he walks deeper into the silence of the cave.

If there were anything to be heard, no sound carries back past the layers of ice that lie thick on the deeper walls, insulating the heart of the cave.