
Introduction
Wait a little before searching our graves... I would really be pleased if you could render me a small service. As I explained, our death was probably neither natural nor soft. I would like... to know what killed us. You may be able to learn more by examining our bodies.

Cunclusion
Surely you've also noticed, the same two small clues that I did by observing the arrowhead. A monstrous jaw was engraved there. This is the symbol of the Behemoth's men but this is not the most important hint. It was manufactured in eliandel... that was rarely used before the Cataclysm and is in fact very difficult to find in the subterranean depths.
So there is, somewhere, a blacksmith who designed arrows for followers of the deceased titan ... unless, of course, there is a hidden high-level forge tens of metres beneath our feet.
Unfortunately I can only have uneducated assumptions for now. I hope you'll learn more someday.