For many years since the Nirnaeth Arnoediad, Arminas sought Turgon and the Kingdom of Gondolin but was unable to find it and had also been wandering with his companion Gelmir since the Nirnaeth Arnoediad. In recent years they had been living with Círdan at the Havens of Sirion, and were afterwards sent by him on an errand to Nargothrond bearing a warning from Ulmo, the Lord of Waters of the impending doom of the hidden realm.
Before arriving there, they encountered Tuor at Gate of the Noldor as he was about to leave Hithlum. When they arrived in Nargothrond, he and Gelmir counseled Orodreth to shut the doors of his realm and remain a hidden folk. He was mistrusted by Túrin and the two argued over opposing views. Despite their warnings, Orodreth under the influence of Túrin did not listen to their advice. Arminas and Gelmir eventually departed south and reported what they were told to Círdan.
His fate is unknown.
- ↑ Unfinished Tales, Part One: The First Age, I: "Of Tuor and his Coming to Gondolin"
- ↑ Unfinished Tales, Part One: The First Age, II: "Narn i Chîn Húrin" (The Tale of the Children of Húrin), Appendix
- ↑ The Children of Húrin, Narn i Chîn Húrin, The Tale of the Children of Húrin, XI: "The Fall of Nargothrond"