Ring of Oath location in Elden Ring

The Ring of Oath is an item in Elden Ring that the game tells you is required to pass through a barrier in the Lake of Rot underground region. The problem is that the Ring of Oath doesn’t exist.

Finding the Dark Moon Ring is part of Ranni’s questline. In this Elden Ring guide, we’ll tell you where to find the Dark Moon Ring — which is what the Ring of Oath is actually called.

Progress Ranni’s questline to find the Ring of Oath

Image: FromSoftware/Bandai Namco via Polygon

Before you even need the Ring of Oath (aka, the Dark Moon Ring), you’ll need to have progressed Ranni’s questline quite a way. You’ll need to have already found Blaidd in the Siofra River region, defeated Starscourge Radahn, found the Fingerslayer Blade in Nokron, Eternal City, flipped the Carian Study Hall, traveled to the Ansel River via the Waygate at the top of Renna’s Rise (not Ranni’s Rise), and defeated the Baleful Shadow at the entrance to the Lake of Rot.

Defeating the Baleful Shadow will earn you the Discarded Palace Key. Examining it says it opens a chest “found in the Grand Library of Raya Lucaria with her mother Rennala.”

Ring of Oath location

You don’t technically have to have completed the Academy of Raya Lucaria prior to reaching this point, but if you haven’t done it yet, you’ll need to now. Once that’s all set, head to the Raya Lucaria Grand Library site of grace. This unlocks after defeating Rennala, and is a place you’ll likely return whenever you want to respec.

Image: FromSoftware/Bandai Namco via Polygon

Open the locked chest off to Rennala’s left. Inside, you’ll find the Dark Moon Ring. This is the Ring of Oath, which is “symbolic of a cold oath” as referenced in the ring’s description.

With the Dark Moon Ring in your inventory, the barrier will have disappeared, and you’re free to continue on to the Astel, Naturalborn of the Void, boss fight.