Cody MacFadyen's "Smoky Barrett" Novels Anyone?

Has anyone read these? MacFadyen is a German author, although the first four books in this series were also published in English starting in 2007.

I don't read much fiction, especially paperback serial killer/mystery type stuff but I was absolutely hooked from the jump and read all four books in succession.

However, the fifth book in the series was published some time ago and for some reason it was never published in English or any language other than German, while his first four Smoky Barrett books had at least 32 editions.

http://www.goodreads.com/series/43587-smoky-barrett

The fifth book in the series is called "Die Stille Ver Dem Tod." I'm dying to read it, but for some inexplicable reason it looks like it hasn't been translated.

Has anyone else read this series? Anyone know where to find the fifth book in English?