Description
You've found a journal on one of the corpses of a Defiant in Granitedust Gulch. It details their study of the captive planar creatures you encountered in their camp. Perhaps you should bring it to Sir Reginald Gaunt at the Guardian camp in Granitedust Gulch.
Upon completion
Hrm, this research warrants further study. According to its account, the Defiants aren't the cause of the rift at Rock Ridge. They seem to be as in the dark as we are. Hopefully, we can turn this to our advantage.