I found out about this book through Last Podcast on the Left, which did a phenomenal three-part episode series on the Donner Party and used this book as the primary source for their information. I was so fascinated and intrigued by this story, which I'd only ever heard about in vague details, that I decided to read the book for myself.
Pretty much all I knew about the Donner Party until this book was that a group of pioneers once got trapped in the mountains in a snowstorm and ended up resorting to cannibalism to stay alive. Obviously, the real story is so much more complicated (and harrowing) than that, and if nothing else, this book will ensure that after you read it you will be absolutely impossible to have a conversation with anyone that doesn't eventually end in you saying, "So, do you want to hear a cool story?" My friends and coworkers know so much more about cannibalism than they ever wanted to know, thanks to this book and my hyper-fixation on the story while I was reading it.
There was so much that I didn't know. I didn't know, for example, that the "Donner Party" actually consisted of several extended families traveling to California together, along with a handful of single men hired as workers. I didn't know that the Graves family, who form the focal point of Brown's book, were hardscrabble poineers who had survived plenty of harsh conditions before the fateful trip, and were hardly the foolhardy amateurs that they're sometimes reduced to. I also didn't know that the Donner Party was traveling a route that had never actually been attempted before, and was created by some guy who looked at a map and thought, huh, they can save 200 miles by just cutting through this salt desert in Utah! (spoiler alert, it was not a good shortcut). Basically, these people were doomed from the moment they set out from Independence, Missouri (a whole three weeks after the deadline to avoid the winter, by the way) and it's a miracle that there were any survivors at all.
One of the best aspects of the book is how thoroughly Brown researched every aspect of the journey to California, and goes into exhaustive detail about everything from wagon construction to frontier gender politics, so that the reader has a complete picture of what life was like for the people who would eventually be trapped in the snow on the shores of Donner Lake. (Apparently there's a boulder next to Donner Lake with a plaque in it, informing people that a family from the Donner Party used it as a wall for their shelter when they were trapped in ten-foot snow drifts, and there is something so chilling about that fact, I can't get over it)
This is a brutal book, as it should be. Brown makes sure that his readers understand exactly how dangerous the route to California was, even under ideal conditions, and I'm still amazed that anyone ever made it past the Midwest. Once the Donner Party's supplies start to run low and exhaustion sets in, things start to get bad: first their cattle die, then they have to eat the cattle. They eat their dogs, they eat their own shoe leather, they boil bones down into a gluey soup - and that's long before anyone suggests eating the dead humans. The details and descriptions that Brown provides of these people's gradual, desperate descent into cannibalism are gruesome and vivid, and the visuals he conjures up will stay with you for a long time: as the first few survivors staggered out of the mountains, Brown describes them as being basically walking skeletons, with their clothes almost completely disintegrated, their lips cracked and bleeding, their bare feet leaving bloody footprints in the snow. This story is basically a horror movie, and these people didn't triumph over their circumstances so much as they crawled out of them, bloody and broken but somehow still alive. It's not uplifting, exactly, but it does leave you impressed by just how much the human body can potentially withstand, and how far people are willing to go in order to stay alive.