While not as good as Tinker, Wolf who Rules, holds its own.
Tinker is still a genius and still struggling to make sense of life and the different intrigues that she has become enmeshed in. Being the wife of the viceroy of the elves involves a lot more than she could have imagined. While struggling to hold her head over water in the intrigues of court brought to the outpost of Pittsburgh, she also has to save Pittsburgh by solving the riddle of the discontinuation. Having strange dreams to guide her is not helping that rather one-track mind of hers (one that thinks in physics and high maths), not fairytales.
Wolf who Rules (or Windwolf) has a much larger part in this book. We see him as a ruler of the elves of Pittsburgh, a ruler who puts his people before his own ambitions. Unfortunately elves are like humans in their ambitions, so not all of the newcomers are as noble as he.
I recommend this book to any and all. Wen Spencer is a varied writer, one that has found a place in my life.