B.P.R.D.: The Devil You Know (comics)

The explosive conclusion to the B.P.R.D. series is collected in full! Lovecraftian monsters ravage an apocalyptic earth as the B.P.R.D. fights to save what little of humanity they can. But even Hellboy is not who he once was, and whether anyone survives Varvara and the long-awaited Ragna Rok remains to be seen.

Hellboy, Abe Sapien, Liz Sherman, and other familiar faces from the B.P.R.D. gather one last time to make a final stand for humanity.