[Inside the box is... your vision. When you touch it, you feel your usual powers returning to you.

There's also an oddly shaped tile bearing a map of Alatus Nemeseos. On the back a message is written in a slightly blocky, runic handwriting:

The elements know the truth of this world.]

I have to say, you vision bearers sure are lucky. Fighting aside, Elemental Sight makes life a lot easier.

Speaking of which... There's something I think you could help me with, if you don't mind.