The Thirteen Hallows

This book was an easy read but I was more and more annoyed by it as I continued, and only finished it because I'd gotten so far already. I would call it The Da Vinci Code on steroids, complete with breathless "author's note" that these things really exist. One thing that it has a lot of is pure sadism, blood, gore and body parts, as well as sadistic sex and a pair of incredibly incompetent detectives. I really cannot recommend it.
The final straw, if a small one - there is no such thing as a 2,000-year-old chessboard.