Pastwatch: The Redemption of Christopher Columbus is as good a piece of psycho-history as has been written. The main plot of this story - undoing the damage unwittingly wrought by Christopher Columbus - enlightens the reader about pieces of history that remain largely unexamined in a nation that celebrates Columbus Day as if CC himself were the first native. The evaluation of the actions leading up to Columbus' (largely accidental) journey to America, their repercussions and alternatives, stands with the strongest philosophical explorations of Card's best novels. Pastwatch is not particularly concerned with the development of any characters but Columbus, and even he is a little distant, but it is a rare instance where characterization is secondary yet competently executed. The only flaw (in my opinion) is two-thirds of they way through the novel when the time-travelers of the book, determined to help Columbus do it right, act on the majority wish of the planet's population against its more immediate well-being. Sadly, that most of the world is self-sacrificing may never be believable. As an examination of the seldom-told early history of Europeans in America, Pastwatch is an entertaining way to learn some disturbing truths that all Americans should know. As a work of fiction, Pastwatch examines the themes of responsibility, character and faith better than most non-fiction books focusing on those subjects. I highly recommend this book to any fan of science fiction, history or ethics. I can't say that about anyone but Card.