Riddle Help

There is a small sand-covered chamber where the passage of time has seemed to stop.
There is a sense of power about the place. On one wall you see enscribed in runes and glyphs of power:
In Elvish, the one comprised three.
The first created, then marred
was to be fixed by the second to be,
while the third, far from worst,
dealt with those who were not first.

Ainulindale <-- is the answer I guess

That’s what Bobbins says.