Some of the reviews posted here complain that this book really isn't a biography, and couldn't be, as too little is known for certain about Subotai to fill one. True enough, but I think books should be assessed based on what they are, not on how well they fit into preconceived categories. At worst, it might have been mistitled. But that just seems like a quibble to me.
So if this book isn't a biography, what is it? I'd call it an examination of the early phase of the Mongol conquests through the lens of what is known, reputed, and inferable about the enigmatic man at the heart of their devastating successes. What do we know about Subotai? At least this much: he led the Mongol Hordes from to victory to victory across Eurasia, laying waste to empires from Poland to Korea. How was that possible, for an army of illiterate tribesmen on horseback armed with bows and arrows?
The answer must be that Subotai, who won more battles and conquered more territory than any other man in history--not excluding Genghis Khan himself--was one of the greatest military geniuses who ever lived. I commend Richard Gabriel for drawing attention to this important but overlooked man.
Even apart from the author's good intentions, I very much enjoyed this book. It was a quick easy read, with a strong style and no errors that I noticed. (Not that I'm an expert, mind you!) The chapter on Subotai's epic cavalry raid west of the Caucasus Mountains sticks in my memory as particularly exciting and evocative: I could hear the pounding of the hooves and the twang of the bowstrings. I could smell the blood, smoke and fear.
Also noteworthy is the thoughtful epilogue which discusses the historical continuity between the Mongol and Russian Empires, connecting Subotai's achievements to contemporary geopolitical concerns. This is no mere chronicle of interesting but irrelevant events of a bygone era. It's a compelling reminder of how the outstanding deeds of a single man can reverberate across the world for centuries.
For all that I'd already read about Mongol history, I emerged from this book more knowledgeable and curious about it than ever. I'm glad I read it.