"From the pages of Hellboy" -- p. [1] of cover.
"This book collects the comic book series B.P.R.D. Hell on Earth: the devil's engine #1-#3 and B.P.R.D. Hell on Earth: the long death #1-#3"--T.p. verso.
Mike Mignola's B.P.R.D. Hell on Earth. The devil's engine and the long death by Michael Mignola. ISBN 9781595829818. Published by Dark Horse Books in 2012. Publication and catalogue information, links to buy online and reader comments.