Warning: This article contains SPOILERS for The Rings of Power season 2, episodes 1-3.

The Rings of Powerseason 2 will see Celebrimbor and Sauron forging the remaining rings, andone detail of the former’s story also sets the stage for an iconicFellowship of the Ringscene. Amazon’sLord of the Ringsshow returned for its sophomore season on August 29, andSauron is wasting no time pursuing his endgame. While Elrond and Galadriel squabble over whether they should use the Three Rings, Halbrand returns to Celebrimbor’s forge and convinces him to make even more Rings of Power.

Sean Astin as Samwise Gamgee in The Lord of the Rings and Markella Kavenagh as Nori Brandyfoot in The Rings of Power

The Dwarves and men will soon have their own Rings of Power, and that’s mostly thanks to Sauron’s talent for manipulation and deception. Of course,Celembrimbor’s expertise at the forge is also necessary for the objects' creation. There’s a reasonSauron works so hard to win the Elf over, even transforming into Annatar to gain his trust.The Rings of Powercements Celebrimbor as one of Middle-earth’s finest craftsmen, and it highlights how much his work changes the fate of the continent. It’s not just the Rings of Power, either. Season 2 also reveals his involvement in creating another important substance.

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The Rings Of Power Season 2 Reveals The Origin Of Ithildin

This Is The Substance The Doors Of Durin At Moria Are Made Of

Ithildun, which is made from Mithril, is used to craft the Doors of Durin. These serve as the western entrance to Khazad-dûm.

In addition to making the Rings of Power,Celebrimbor creates another hugely important substance: Ithildin.The Rings of Powerseason 2’sthree-episode premiere reveals the origin of this substance, which is in line withJ.R.R. Tolkien’s books. Celebrimbor invents Ithildun in both Tolkien’s writings and the show, and it can only be seen in moonlight. Ithildun, which is made from Mithril, is used to craft the Doors of Durin. These serve as the western entrance to Khazad-dûm. Khazad-dûm later becomes Moria, which Frodo and his companions pass through duringThe Fellowship of the Ring.

Celebrimbor (Charles Edwards) and Mirdania (Amelia Kenworthy) in The Lord of the Rings: The Rings of Power Season 2 Episode 2

Those familiar withThe Fellowship of the Ringwill recall Frodo and the Fellowship passing through a doorway that requires them to “speak friend and enter.“This is the Doors of Durin, and by showing the history of the substance used to create them,The Rings of Poweris setting up this greatLord of the Ringsmoment. We may even see the construction of this passageway in the coming episodes of the Amazon show. Season 2 is poised to introduce the Dwarf who helps Celebrimbor build them, and it’s set to focus on the Dwarves' relations with the Elves.

Will The Doors Of Durin Be Constructed In The Rings Of Power?

Narvi’s Introduction Makes A Strong Case For It

Cerebrimbor’s invention of Ithildin sets upThe Fellowship of the Ring,butit also makes it likely that the Doors of Durin will be constructed duringThe Rings of Power. In fact, this will likely happen inThe Rings of Powerseason 2. Thesecond outing is confirmed to introduce Narvi, who helps Celebrimbor create the Elven Door to Khazad-dûm. Additionally, Celebrimbor’s offer to the Dwarves makes it likely that they’ll be collaborating with the Elves more.

All of this is setting the stage for us to see the Doors of Durin in the coming episodes ofThe Rings of Power.This addsmore excitement to this outing, giving diehard Tolkien fans anotherevent from the Second Ageto look forward to. AlthoughThe Rings of Powerisn’t connected to Warner Bros.‘Lord of the Ringsfranchise, it also adds a fun detail for those more familiar with the Third Age of Middle-earth.

The Doors of Durin glowing in Lord of the Rings: Fellowship of the Ring.

The Lord of the Rings: The Rings of Power

Cast

Set in the Second Age of Middle-earth, The Lord of the Rings: The Rings of Power explores the forging of the iconic rings, the rise of the Dark Lord Sauron, and the epic events leading up to the stories in J.R.R. Tolkien’s classic novels. The series chronicles the creation of legendary characters and the historic alliances and rivalries that shape the fate of Middle-earth.

Lord of the Rings The Rings of Power Season 2 Poster Showing Charlie Vickers as Sauron