Something deadly is loose in the halls of the B.P.R.D. The B.P.R.D. will need all of its new resources - from Johann's new body to Panya, the team's newest (or maybe oldest) member - to handle the deadly forces that have wormed their way into the heart of the its headquarters, as the line blurs between the hunters of the supernatural and their prey. Killing Ground returns the B.P.R.D. to its roots in visceral supernatural horror that will leave the Bureau forever altered.