B.P.R.D.: The Devil You Know Volume 1 - Messiah

Before they were vanquished by the B.P.R.D., Lovecraftian monsters created a Hell on Earth. As society rebuilds, strange cults vie for influence, and the demon Varvara emerges to lead the way . . . Abe Sapien returns from his self-imposed exile to rejoin Liz Sherman just in time for the Bureau to face the final threat to mankind. Collects issues #1-#4.