First off, you must read Wangerin's "The Book of the Dun Cow" in order to set up the background and world of "The Book of Sorrows". You will still enjoy this novel if you read it on its own, but you'll get more if you understand the buildup. On the surface, "The Book of Sorrows" seems to be yet another "Watership Down" type of adventure. But it, along with "The Book of the Dun Cow", are one of the purest investigations of good and evil I've ever read. The first novel dealt with the battle on a physical plane, this novel deals with the battle within someone's soul. That this someone is a rooster adds to, rather than detracts from, its relevance to ourselves. The emotional drama is all the more poignant due to Wangerin's use of animals as his dramatic vehicles. They allow him to use archetypical secondary characters and focus on the shades within a single soul; rather than confusing the issue with an exhaustive investigation of the nuances of interpersonal relationships. It works because the novel seeks not to investigate the social dynamics of human good and evil, but instead delves into the unvarnished, brutal, conflict of the ages. On a purely visceral level, there is one particular scene that moved me to tears, literally. You'll know it when you read it. I do not recommend this book for anyone who is weak. It packs an emotional wallop unlike any other prose I've encountered. If, however, you seek a weapon to fight your own demons, then read this tale about someone who won.