Grave Mercy was an Addicted to YA February 2014 Book of the Month. I thoroughly enjoyed this mysterious adventure full of uesful herbs, tiny crossbows, and Bretagne lore. While I did study pre-revolution(the big one) French history, I no longer have any idea whether the battles and characters described in the book are accurate. Regardless, the mythology of the saints as well as the medieval times create an aura of dark magic that makes for an entertaining read.