This is a mystery set in 16th century Spain. The protagonist is sent to Aragon to investigate the murder of a priest. It's not a simple murder and, fortunately, Fernando Mendoza is not a simple man. And, despite the gap of 400 years to the present, there's lots of relevance to now. If you like well written historical mysteries and want to learn a bit about Spain at the time, this will be right up your alley. My full review is on my blog.