I recently finished Gemma Files A Book of Tongues...
Honestly it is a great weird western read. I have to throw out a warning it is one that may offend some... if same sex encounters would throw you Id say it may nit be for you.
Now if you have an open mind and like the show Deadwood, clive barker-esque gore this may be your thing. Gemma has pulled in a lot of mayan mythos, blood sacrifice and imagry of gore and torture. It is not a book for kids really with all its swearing and such... guess the Deadwood comparison is pretty apt.
Anyway I mentionit here since I think that the weird fantasy themes of Book of Tongues would fit in well with the dark themes if Malifaux. The action and hexslinging in the novel is fast paced and rather brutal... also the fact the the main players take a tryp to hell it kind of fits the themes of the game....
Anyway it is a great, twisted action novel....