This review is basically a repeat of my review of book 2.
The world building was good as was the pacing. The dwarves and Ruiha are still the most developed characters and again, I cannot say they were all that interesting. There are words and phrases which are still over used such as determination, resolve, sense of purpose, challenges that lay head, shared bond, shared understanding, unyielding/unwavering strength. Remember back in high school when you had a paper due and your teacher wanted it to be 3 pages and you only had 2.25? Remember repeating yourself/rephrasing and adding superfluous words just to eek out the remainder of the page? That's what this feels like but on a larger scale. Monotony at it's finest.