Wizard's First Rule

The first book is really good. But it all starts to fall apart near the end. There is some pretty grim stuff, torture laced with sexual stuff etc. (to much for young readers). Doesn't seem to bother the main character though once he's on the road again (this is where I lost interest, just didn't make sense that he could just cry a little and go back to the way he was before the torture). I guess I expected the character to evolve as events had impact on him, not happening. I read about three more books, then gave up the series.