To Elu Thingol, King of Doriath, Lord of the Sindar,
I write to inform you of certain events which you will wish to know of.
It has recently come to my attention that your daughter, Princess Luthien, was held captive within our realm.
I would like to state clearly, that this deplorable act was done without my knowledge, and certainly without my blessing. I trust that you will not seek revenge against a people whose only crime was ignorance.
The true criminals were Lords Celegorm and Curufin, sons of Feanor. I evicted them from my halls and banished them from my realm. If your path should cross theirs, do not consider their relationship to me as a factor in passing judgment. I no longer consider them to be kin, you may do with them as you will.
I would return your daughter to your care if I was capable, but by the time I learned about her plight, she had already fled. She succeeded in rescuing her mortal lover, Beren, from Tol-in-Guarhoth. She defeated and evicted Morgoth's minion and destroyed his cursed lair. It is difficult to comprehend such a feat, but several freed captives assured me that Tol-in-Guarhoth no longer stands.
Princess Luthien did not return with the captives, she left with her lover. It is rumored they are currently traveling North, towards Angband.
My other news is dreadful.
King Finrod, my brother and your ally, has fallen.
After you sent Beren on his suicidal quest, he came to King Finrod for aid. In defiance of Mando's curse, the Feanorians' treason, and our people's cowardice, the King left with Beren and only ten loyal companions. They were captured by Sauron, imprisoned, and tortured. All but Beren were murdered, devoured by Sauron's wolves. My brother died saving the mortal's life.
You are a hypocrite, my lord. You are as guilty of greed, jealousy, and kinslaying as Feanor was. More so, for you knew those silmarils were cursed. You sold your daughter cheap, for a cold stone drenched in innocent blood. If you are fortunate, Beren's mission will fail. Do not, for the sake of your people, allow those gems to enter your borders. If you do, everything you love and sought to protect will crash down on your head.
As for the alliance between Doriath and Nardothrond, it died in Sauron's dungeon. I will not be your enemy, Thingol. Valar knows we both have enough of those. But if ever Doriath is in need, do not call on me for aid.
Orodreth, Artaresto Arafinwion, acting King of Nargothrond, Lord of Beleriand
I thought Orodreth's Quenya name showed a not-so-subtle defiance toward Thignol.