Murder. Torture.  Alchemy.  Now Antoine has to figure how it all fits as did Nicholas Flamel back in the 1300's.  I enjoyed this story.  I also enjoyed the entwining of the story from today with the story back in 1300's.  I like Antoine and how being a Freemason entwines his whole life.  Every time he is involved with a murder there is a Mason connection.  It is up to him to determine how it fits and use the clues given to find the murderer.  This mystery was good.  I was interested from the beginning and interested in how the Masonic symbols were used by the murderer to find what he wanted.  I also liked how the history of alchemy and the history of some of the founding members of the lodge Antoine belongs mixed together.  A good story and I hope there are more coming in this series in translation.