Sign of the Open Gate.
Gateway. Ancient House of the Gods, Dead, and Sidhe.
Manannan MacLir, God of Magic.
Lord of Journeys, Keeper of the Grave.
Well, that’s interesting. Any more info?
No more info…wait…
Goddesses of the Waters, of the Whirlpool of the Deeps.
The Hall of Laugh, Great Hall of the Gods.
Sky Powers, the Wheel, the Thunderers.
Order of the Worlds.
Parallels to Valhalla, which is what I immediately thought of: