Book 6 of the Mistborn series. The race is on to get an artifact left by Lord Ruler. This injects items that we did not see in the previous arc. However, it does not detract from the storyline. This is a very typical post Roman era novel where in the past sometime they were far more advanced than we are now. It plays well and even introduces a new group from the southern part of the world and even they have better technology. I loved to see the two philosophies crash together and we start to see more of the kandra. The next book is the end of the series and end of the arc so I am interested to see how he concludes the era.