There's a getting blood from a stone joke in there somewhere but it would be too much work to tease it out so I'm just not gonna bother.
Anyway, the always well informed ToonZone has a nice interview with Hellboy Animated creators Mike Mignola and Tad Stones up on their site and if you have any interest in big red's animated adventures, than this'll be worth the price of admission.
I haven't seen Blood & Iron yet but it's on the list of things to do when I have an hour-and-a-half to spare. I've previewed it, though, and it looks pretty decent. Much darker than the first.
Seeing this actually reminds me that I should post my own interview with Tad Stones sometime soon.