Many of these coords are just for location reference; the realms are all custom
and the maps are unwarpable so you'll have to explore.
NOTE: make sure you do the quest on the class you want the ring for
(e.g., if you want the professor ring, do it on a professor.)
Talk to the Mysterious Griever.
Talk to Heith and bring her the following items:
9 Dew of Yggdrasil
9 Prophetess Ward
9 Ymir's Heart
9 Mighty Strength
9 Elixir of Alfheim
9 Cloud Essence
9 Spiritual Whispers
9 Dusk Glow
9 Damp Darkness
9 Chills of Death
Once you give her everything, you'll receive the Unity of the Nine Realms Items.
Make sure to keep this in your inventory through the duration of the quest!
To enter Asgard, find where the mists of Yggdrasil make a rainbow.
Talk to Heimdallr, the guardian of the Bifrost Bridge.
Travel up Bifrost until you reach the entrance to Asgard.
Talk to the A'esir God.
Talk to the A'esir Goddess.
Touch the Jewel of the Heavens to enter the palace.
Talk to Odin.
Talk to Frigg.
Talk to the Stranger who will join you on your journey to Hel.
Keep walking down the dark path until you reach the portal at the end.
Continue over the bridge until you reach the Gate to Hel.
Talk to Modgud and bring her:
1 Breath of Spirit
666 Cursed Seal
This will begin the Gates of Hel Raid.
It's definitely challenging, so you will want to have a full party with you.
Only the party leader should give Modgud the items.
Once you've finished the raid, the party leader has to talk to Modgud
at the end of the raid map to advance to Hel.
Inspect the destroyed remains of a cross.
Talk to the Cursed Soul.
Talk to Hel.
Talk to the Spirit of Baldr.
Once you've left Hel's palace, talk to Loki on the bridge.
Now you can either choose Odin's side for the Blessed Ring,
Click the links above for the continued guide!
Thanks, Deniz, for parts of this guide! ;)