Hidden deep within the treacherous Belurat Tower Settlement in Elden Ring: Shadow of the Erdtree lies a mysterious Storeroom Key that unlocks more than just a door-it opens the path to a secret quest and a powerful incantation. Discover how to find this elusive key perched atop a waterfall and use it to access the Storeroom where the enigmatic Hornsent Grandam awaits, ready to change your journey forever.
Our Elden Ring DLC guide will walk you through where to find the Storeroom Key and the Storeroom, and what to do with the NPC inside, Hornsent Grandam.
Storeroom Key location in Elden Ring DLC
The Storeroom Key in Elden Ring: Shadow of the Erdtree DLC is found in Belurat, Tower Settlement, specifically at the top of a ladder in a hidden room near the waterfall, accessible after passing the Small Private Altar Site of Grace and defeating a dual-sword enemy. This key unlocks a concealed storeroom door across the bridge near the same Site of Grace, where players can meet the NPC Hornsent Grandam and begin her questline. The storeroom is tucked away in a dark corner, making it easy to miss, but exploring it reveals important lore and rewards, including the Watchful Spirit Incantation after progressing through the related quest.
You’ll find the Storeroom Key as you explore Belurat. You’ll pick it up after you pass by the Storeroom – it’s near the Small Private Altar Site of Grace.
Where to find the Storeroom Key
The Storeroom Key in Elden Ring: Shadow of the Erdtree can be found at the top of a ladder inside a room near the waterfall in Belurat, Tower Settlement. To get it, start from the Small Private Altar Site of Grace, head through the area, defeat a dual-sword enemy, then proceed left towards the waterfall. Enter the alleyway on the left, find the room with the ladder, and climb to the top to retrieve the key from a corpse. This key opens the storeroom door across the bridge near the Small Private Altar Site of Grace, granting access to the NPC Hornsent Grandam and her questline.

From the Small Private Altar Site of Grace, head north and up the stairs. Take out the Horned Warrior, and then turn left. You’ll be at the top of the waterfall that falls down to the fountain square from earlier in your exploration. Stick to the right (north), to find an alley that leads around to the other side – watch for Shadow Undead as you go.

Take a left at the river, and then head into the building on your right. Climb the ladder to find the Storeroom Key on a corpse at the top.
How to use the Storeroom Key to meet Hornsent Grandam
To use the Storeroom Key to meet Hornsent Grandam in Elden Ring: Shadow of the Erdtree, first locate the key at the top of the waterfall in Belurat, Tower Settlement. To get there, start at the Small Private Altar Site of Grace, proceed through the archway, defeat the two-sword enemy, then follow the stairs to the left leading to the waterfall. Enter the room with a ladder on the right, climb it, and pick up the Storeroom Key from the corpse at the top. Next, return to the Small Private Altar Site of Grace and head across the bridge near the altar to find the locked storeroom door on the left. Use the Storeroom Key to unlock this door and enter to find Hornsent Grandam inside. After defeating the Divine Beast Dancing Lion boss, return to Hornsent Grandam with the Divine Beast Head equipped to advance her quest and receive rewards such as the Watchful Spirit Incantation.

Head back to the Small Private Altar Site of Grace. This time, when you leave, take a left (south) to cross the bridge those annoying casters snipe from.

At the far end, you’ll use the Storeroom Key to unlock a door to meet Hornsent Grandam. There’s nothing to do with her yet, but she’s creatively insulting. Unlock the other door just to have more options – it’s not really a shortcut, but it does give you the drop on the Shadow Undead in that dead end.
She’s got some rewards with you if you keep checking in with her at certain points. We’ll walk you through those steps in our Hornsent Grandam guide.
Want to discover the hidden secrets behind the Storeroom Key in Elden Ring
The Storeroom Key in Elden Ring: Shadow of the Erdtree is a crucial item hidden deep within the Belurat Tower Settlement that unlocks a secret room near the Small Private Altar Site of Grace. Finding this key involves navigating a perilous path past ambushes and enemies, culminating in a ladder climb to a concealed corpse holding the key. Using the Storeroom Key opens the door to meet Hornsent Grandam, an intriguing character who initiates a questline revealing hidden lore about the Shadow Realm and Queen Marika, adding rich narrative depth to your adventure. This key is not just about unlocking a door but about uncovering secrets that deepen your understanding of the DLC’s mysterious world.
What is the exact location where I find the Storeroom Key in Elden Ring
The Storeroom Key in Elden Ring: Shadow of the Erdtree is found in the Belurat Tower Settlement, specifically at the top of a waterfall near the Small Private Altar Site of Grace. From the Site of Grace, proceed through the archway into a room with stairs on the right, defeat a two-sword enemy, then follow the path up the steps to the left leading to the top of the waterfall. To the right, enter a room containing a ladder; climb it to find a corpse holding the Storeroom Key.
This key unlocks the storeroom door on the second floor of Belurat, across a bridge near the Small Private Altar Site of Grace. Inside, you will encounter Hornsent Grandam, who is part of a questline and offers a special incantation after you defeat the Dancing Lion boss and return with the Divine Beast Head item.
