A mysterious monster is killing its way through the heart of B.P.R.D. headquarters, leaving the agents helpless as Liz withdraws further into the world of her visions. B.P.R.D.: Killing Ground immediately follows B.P.R.D.: Garden of Souls. Written by John Arcudi and Hellboy and B.P.R.D. creator Mike Mignola, and drawn by acclaimed artist Guy Davis, Killing Ground brings the B.P.R.D.'s battle back to their own home.