How do you have a gunfight when your opponents can manipulate metal? Brandon did he unthinkable and mixed guns with magic. It resulted in something wonderful. His normal attention to detail in the magic mixes with a lot of action. This book is a little short on world building (for him), but a lot of it was setup in the Mistborn trilogy. The way the world has changed since then is intriguing, and his ways of tying the end of the first trilogy with this intro to the upcoming second trilogy is done very well.