Fiction by Ken Follett
Set in Middle Ages and full of feudalism, war, and the plague, this book might be expected to be terrible.
BUT IT'S NOT!
This is a great book! It's long, but it is definitely worth reading the whole thing. I really loved the characters and the story.
(Although this is the sequel to The Pillars of the Earth, it could definitely be read independently of that novel, since it takes place a couple of hundred years later and, sadly, all the characters from Book One are dead.)
I'm getting the third book next. Squee!!!
I also read recently by this author: Whiteout