Some of you have probably read The Name of the Wind (Patrick Rothfuss).
You may be thinking of reading the sequel (The Wise Man's Fear).
Don't. Read this review instead. It has spoilers, but you won't regret it; they will save you a lot of trouble.
http://ferretbrain.com/articles/article-751
If you want to pass on that review, to have an unspoiled experience of the second book... Be my guest. But don't yell at me when said second book disappoints you.
(And if you have already read The Wise Man's Fear... Well, so have I. I feel your pain. )