While Knott does a decent enough job of emulating Parker's style, this particular novel really misses the mark, at least for me, the mark being a story that makes sense, and is more than just an excuse for Virgil and Everett shooting like a jillion bad guys. Honestly, this one is played out sort of like an extreme action movie, with lots of violence, but even that violence isn't terribly well described.
The author tends to understate battle\action sequences. Here's an exaggerated version of an action scene.
I finished counting and then kicked in the door. On the other side of the building, Virgil was coming in the door. The fellow reached for his gun and Virgil shot him. Another fellow was reaching for a rifle and I shot him.
Okay, that's slightly exaggerated, but the action is bang bang-- done! Perhaps the author was trying to give the reader a sense of the action happening so very quickly in the Old West, but instead, this one reads like a Western Version of an 80's action flick... without the machine guns, but with lots and lots of deaths.
Other sequences (train car freewheeling down a long slope) just get almost completely ridiculous.
Finally, the author continues the series' creators overuse of the "F" word. Once again, I'm certain it was used in the old west by some rough and tumble men, and most of the characters in this book are indeed rough-and-tumble types. But-- I just don't think we would see usage like calling someone a f---, instead of a f----r. That's a much more modern usage. In some places, that language fits-- in others it is so out of place as to be distracting. The author did make an effort to use period slang for female sexual company, which at list felt as if it fit the period.. though some of it might have been better suited to the Roaring 20's.. To be fair, I didn't live back in the old west, nor do I claim to have done an etymological study of vulgar and obscene language on the Western Frontier... but Charles Portis was able to write a very realistic western (TRUE GRIT) that very much captured the speech patterns (at least those we have in print and letters written) of the period... Parker should have and Knott really should read some period stuff or perhaps Mr. Portis wonderful novel for hints at the manner in which people on the frontier really spoke.
The book is worth reading, but only in the sense of pulp western material that never rises to a level of real quality. In fact, I couldn't wait to be done with it.
Other fans of the series may feel differently, however.