A Potential Conspiracy

I've noticed that the master weaponsmith has been acting very suspiciously lately. In particular, Yasskul Addaya seems very fond of walking in the prairies alone. I drew up a map of his standard routes and noted that each time he visits a certain area. I need to see what he's got hidden in there.

Once we uncover his secret we'll be able to bring him to justice. Maybe he's part of a widespread conspiracy! And once we uncover it, I'll get a medal and a leave of absence. Then I'll have all the beauties and cocktails I could want!

There appears to be an old sarcophagus hidden in the cave. Time has worn it down, but it has clearly been taken good care of.