Vacant Snow Castle

A cyclopean castle built of snow. A thousand feet wide and spires a thousand feet tall.
A giant gate of solid ice. There's a gap to crawl through underneath.
No signs of life inside. Is no one home?

The snow giant King and Queen are out touring their domain—the giants have all left the castle. When the cat is away the mice will play, but the giants will return sooner or later. So hurry up, and steal as many treasures as you dare before taking your leave!

This adventure was a submission to the One Page Dungeon Contest 2022. 
It works as a stand-alone one-shot, and can also be included directly as Location 8 in the snowy point-crawl exploration adventure Merry March in the Winter Wood.

System neutral, but was written assuming Cairn by Yochai Gal (cairnrpg.com).