Dawnstar Sanctuary is a hidden location in the game The Elder Scrolls V: Skyrim. It serves as the headquarters for the Dark Brotherhood, a faction of assassins. The sanctuary is located in the Pale region, near the town of Dawnstar, and is accessible after completing specific quests related to the Dark Brotherhood storyline. Inside, players find a cozy yet eerie atmosphere, with various rooms for sleeping, crafting, and planning assassinations. The sanctuary is home to several key characters, including Astrid, the leader of the Dark Brotherhood, and other members who assist players in their quests.