Realms of the Three Rings™ is a supplement for The One Ring™, the official tabletop roleplaying game based on the works of J.R.R. Tolkien.

• Chapter 1: Where The West-elves Still Linger describes the realms of Lórien, Rivendell and Lindon and those who dwell there, including the Elf-lords who are their guardians.
• Chapter 2: The Days Darken provides the Loremaster with details about Sauron’s schemes against the Immortal Folk, including possible events, Adversaries, and Loremaster characters.
• Chapter 3: Landmarks outlines twelve sites of interest, including locations mentioned in The Lord of the Rings™ and others created specifically for the game.
• The Appendix contains rules to play High Elves of Rivendell and Elves of Lórien, and introduces guidelines to create Elf-lords, powerful characters especially suited for solo play.