This was the first B.P.R.D. mini-series. Three issues long, it was written by Mike Mignola, Christopher Golden and Tom Sniegoski with art by Ryan Sook and Curtis Arnold. It was published from January to June 2002. Hellboy novelist Golden and his long-time writing partner Sniegoski wrote the story with regular input from Mignola. Sook was chosen to draw the book following a meeting with Mignola at a convention in Oakland in 1995 and saw it as a chance to have a book all to himself although Arnold joined as inker when schedules started running tight halfway through production.