Witchfinder - City of the Dead #1-5 was a wonderful pilot episode for a Sir Edward Grey ongoing series. I know this is the fourth such mini-series, but this one, more than any other beforehand, really stepped up with the world building - a range of supporting characters were introduced; plot threads were pulled that did not tie off neatly by series' end. I hope this was intentional, and that more stories are on the way. Ben Stenbeck's art was fantastic too - he's really developed into an amazing storyteller. Excellent stuff.
Rise of the Black Flame #1-5 was, perhaps, an even more satisfying read as it stands on it's own more neatly (albeit not entirely, as it leads into the title character's appearance in Lobster Johnson). An old fashioned pulp adventure, set in the jungles of Asia, with dashing heroes and a blood thirsty cult. I hope to see more of Miss Jewell and her travelling companion again.
Both series were written by Chris Roberson, and whilst not strictly his debut in the Mignolaverse, are his first major works. As such I'm relieved to say that I enjoyed them both immensely. I was really worried when John Arcudi stepped down from the bulk of BPRD writing duties. I needn't have paniced; Roberson's a fine replacement.