An aether-what?

[Zenaku]

So...

Where did we dig these up? Mor Dhona?

And what about the beastmen? They just stole or salvaged the old ones? But how are they reversed in transportation magic to begin with?

My understanding is that they need to make crystallized ether you need a lot of magical understanding to make ether into a crystal form. Beastmen have the magic to summon there primal and they also use a lot of crystal like fire and such to summon there primal. So i'm guessing they also understand how to make the crystallized ether.