Mellyrn

Melrein was the Elves original capital city. Melrein contains unique structures woven of trees which had been smashed down the line the ugly scars of char still remained yet the ruins were blanketed in brilliant flowering plants as if it were all a graceful garden. the sky was stained the color of blood and the earth was sullied by the poison of the black ash yet in this world of death it appeared the fallen metropolis still enjoyed the protection of an Old Deus more specifically the protection of Kainas the Forest God and the creator of the Elves.

Elven Library
The library was according to Fiel was full of magical grimoires that were stolen by Jibril during her attack and raid on the Elves' ancient capital.

the top floor and entrance is a "rooftop garden" with a "field" of flowering plants and fungi clustered around pillars inscribed with elvish dotted around the garden.