Writer: Mike Mignola, Joshua Dysart
Artist: Paul Azaceta
Cover Artist: Mike Mignola
Colorist: Nick Filardi

In the wake of the second world war, Professor Trevor Bruttenholm-occult investigator and guardian of the infant Hellboy-founded the Bureau for Paranormal Research and Defense to investigate and defuse the remains of the Axis's sophisticated occult warfare projects and potential Soviet threats. Now, outfitted with a small band of war-weary Allied soldiers, Bruttenholm begins to unravel the mystery of the Nazi Occult Bureau's greatest and most threatening initiatives: Project Vampir Sturm.