Guild Wars 2

I searched in the forums writting in the search box: blue orb, krait orb, but nothing.
Thanks

I’ve searched in the forum for this, but there is nothing about it.
The krait orb that now protects Fort Trinity from the Risen. Where does it came from?
I’ve done the personal story with Crusader Apatia, and the informations are few.
The krait brought the orb from the ocean when they fled from the Deep Sea Dragon.
And it prevents the Risen from reviving. These are the only information in-game

Thanks