I finally got my hands on the third and final installment of the Leviathan series by Scott Westerfeld a few weeks ago. Unfortunately, I can't really describe it or its plot points in detail without spoiling the end of the first book and all of the second, so I'll hit the high points: Siberia, Japan, the United States, hot air balloons, Tesla, espionage, assassination plots, and cute critters. It wraps up the previous two books nicely, and all of the things I said about the series (good and bad) in the previousreviews hold true for this one.
Overall, it's a very entertaining and engaging read. 4 out of 5 stars.