Flintlock Fantasy

Hey guys, I recently picked up Promise of Blood by Brian McClellan, and I wasnt too sure what to think, or if it was a good idea. But after finishing it up, I can safely say that it was a good buy. With an inovative magic system, memorable characters and an interesting world, I was quite taken aback by how much I enjoyed it.

Now, I've already purchased the following two novels in the series but I'd quite like to know if there's any other Flintlock Fantasy books you kind folks on here could recommend to me?