It's rare for me to find a fantasy author that I've never heard of who then makes me go "wow" on a regular basis through nineteen and a half hours of the first book in a series.
The book is "Red Sister" and the author is Mark Lawrence.
I found them both through a review by Just One More Chapter.
That's one of the joys of BookLikes.
I'll write my own review once my head has stopped spinning.
In the mean time, take a look at the review that set me on this path and see if it gets your imagination running.