Here’s how to complete this hidden away dungeon to get a powerful new Spirit Ash summon.

TheRivermouth Caveis an optional dungeon inElden Ring’sShadow of the ErdtreeDLC.

To confirm you grab everything you need from this dungeon, read on below for our in-depthRivermouth Cave walkthrough.

A warrior enters the Rivermouth Cave in Shadow of the Erdtree.

You’ll come to a room with several wolves in it.

Again, they’re very easy to defeat, requiring just a couple of hits to go down.

As long as you don’t take on too many at once, it’s a very straightforward encounter.

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Jump up the rocky slope and you’ll see a corpse lying down below.

Eventually, you’ll come out to a large chamber and witness a very strange sight.

For now,crouch and stay silent, moving slowly and quietly round to your right.

A map screen from Shadow of the Erdtree showing the location of the Rivermouth Cave in Gravesite Plain.

After taking out the troll round the corner on your right, head up the narrow passageway.

With all items now looted, head back down the way you just came and return to the chamber.

It’s time to face this dungeon’s boss: theChief Bloodfiend.

A warrior fights two wolves inside the Rivermouth Cave in Shadow of the Erdtree.

Improve your stats by finding all of Shadow of the Erdtree’sScadutree Fragment locationsandRevered Spirit Ash locations.

A warrior jumps up some rocky steps inside  the Rivermouth Cave in Shadow of the Erdtree.

A warrior looks on a strange scene inside  the Rivermouth Cave in Shadow of the Erdtree, where trolls worship a stone altar on a pool of blood.

A warrior creeps up behind a troll inside  the Rivermouth Cave in Shadow of the Erdtree.

A warrior looks down to attack several trolls in a pool of blood in  the Rivermouth Cave in Shadow of the Erdtree.

A warrior faces two large trolls in a pool of blood in the Rivermouth Cave in Shadow of the Erdtree.