Head down the slope and into the room with all the tombs. You will enter an Investigation zone. You need to approach each of the tombs in turn to find what you are looking for. Head straight through the room and use Eagle Vision will see one very large tomb in the back right. Head through the nearby door to get to it.
The one you are looking for is in the Northeastern corner of the area. It has the symbol on the top of it. The problem you will see is that the tomb has been opened. Investigate it for some clue as to what to do next.
- Don't get into conflict
- Play organ (Distraction Opportunity)
- Let the allies do the job (Assistance Opportunity)
- Cover kills 0/2