Unlocking Elden Ring's Shadow of the Erdtree DLC: Storeroom Key and Hornsent Grandam Questline

Discover the steps to find and use the Storeroom Key and navigate Hornsent Grandam's intricate quest in the new Elden Ring expansion.

The Storeroom Key is located near the Small Private Altar Site of Grace in Belurat, Tower Settlement.
Using the key grants access to the Storeroom, where players first meet Hornsent Grandam.
Hornsent Grandam provides rewards and new dialogue after defeating specific bosses, including the Divine Beast Dancing Lion and Messmer the Impaler.
Players must wear the Divine Beast Head helmet when interacting with Hornsent Grandam post-boss fight for additional rewards.
Further interactions with Hornsent Grandam occur at various points, offering items like the Watchful Spirit spell and Gourmet Scorpion Stew.