The thread about the Texas books and the Western Movies thread got me to thinking about "Brules" written by Harry Combs. It's been a long time since I've read it, but is one of my favorite books. It was the first (I think) of a trilogy of books that Combs wrote. Can't remember the second book, but I think the third was "The Legend of the Painted Horse", which I didn't like as well, though was still a good read.
