Promise of Blood is what is known as "Flintlock Fantasy" which means it contains a world where guns (musket/flintlock era weapons) exist alongside swords and sorcery. This book introduces the concept of Powder Mages, who are gun using sorcerers that rely on gunpowder to fuel their abilities. Powder Mages can enter a powder trance by ingesting gun powder thus allowing them to manipulate and control bullets as they fly or explode nearby gun powder being carried by their enemies. It is a unique magic system and executed pretty well by Brian McClellan. That concept combined with an interesting story arc carry the series and make up for the characters which I found to be a little uninteresting as a whole.
Mistborn is an excellent series and I thoroughly enjoyed every book in the original trilogy: The Final Empire, The Well of Ascension, and The Hero of Ages. I was completely drawn into Sanderson's world of Allomancers and all of the interesting things they could do right from the start. Allomancy is the art of "burning" a metal that you ingest to enhance your own physical and mental abilities. There are 8 metals that can be burned and most Allomancers can only burn a single one; however, there are rare individuals who can burn all 8 and these are known as Mistborn.
The ToJ website has a new hosting provider and a new look to go with it. I decided not to carry over all of the old baggage from the old site as I switched providers so it is time to try something new.