Bone and Marrow

After using the Necromantic Detector, it seems that these large bone structures are likely the source of what's causing the undeath of this area. I'm going to take a sample from these bones and see if I can't discover why they're spreading this scourge. Once I have that answer, hopefully I'll be able to find a way to counter it.

Steps

 * 1) I need to take a sample from one of these bones.
 * 2) * I need to take a sample from the nearby bone.

Rewards

 * At least