Сильмариллион
Of the Return of the Noldor
Butunquietwasuponthemeverafter,anddoubtofwhatshouldbefall,andtheywanderedoftenaloneinuntroddenlands,seekingfarandwideforplacesofhiddenstrength;foritseemedtoeachthathewasbiddentoprepareforadayofevil,andtoestablisharetreat,lestMorgothshouldburstfromAngbandandoverthrowthearmiesoftheNorth.
NowonatimeFinrodandGaladrielhissisterweretheguestsofThingoltheirkinsmaninDoriath.ThenFinrodwasfilledwithwonderatthestrengthandmajestyofMenegroth,itstreasuriesandarmouriesanditsmany-pillaredhallsofstone;anditcameintohisheartthathewouldbuildwidehallsbehindever-guardedgatesinsomedeepandsecretplacebeneaththehills.ThereforeheopenedhishearttoThingol,tellinghimofhisdreams;andThingolspoketohimofthedeepgorgeoftheRiverNarog,andthecavesundertheHighFarothinitssteepwesternshore,andwhenhedepartedhegavehimguidestoleadhimtothatplaceofwhichfewyetknew.ThusFinrodcametotheCavernsofNarog,andbegantoestablishtheredeephallsandarmouriesafterthefashionofthemansionsofMenegroth;andthatstrongholdwascalledNargothrond.InthatlabourFinrodwasaidedbytheDwarvesoftheBlueMountains;andtheywererewardedwell,forFinrodhadbroughtmoretreasuresoutofTirionthananyotheroftheprincesoftheNoldor.
AndinthattimewasmadeforhimtheNauglamir,theNecklaceoftheDwarves,mostrenownedoftheirworksintheElderDays.