"Key" to Azys Lla?

[Enur]

It's subtly implied that the Vanu Vanu, like the Ixal, are descendant from a slave race made by the Allagans.

That is indeed what i am saying. But unlike every other allagan creation there is no evidence of vanu vanu in azys lla save for the key they were
holding.

Additionally the lorebook mentions the vanu as exeptionally clever when compared to other beast tribes noting they learned the common tongue from ishgardians with remarkable speed.


My idea i tried to propose was that the vanu were created with one purpose, keeping bismarck sustained.