This book is very engaging and definitely worth reading. Our main protagonist Tavi has got what he dreamed of, a place at the capital city's academy - and yet as is nearly always the case in life, it's not as rosy a situation as he could have hoped for, and once again danger is looming on the horizon (keeping in mind that 2 years had passed since the first book, it's not that improbable) Jim Butcher once again manages to completely suck you into the world he has created (more original than many other fantasy worlds) using a form of magic that is original and very satisfying to read about.
This book works best if you consider it the second instalment of a larger story, Jim Butcher has very carefully cultivated some (initially seemingly unimportant) plot lines that develop beautifully as the series continues.
I stumbled upon this book (and series) because of Jim Butcher's Dresden Files, which I also enjoyed a lot.
And although the Dresden Files series are unquestionably the better known series (no wonder as it was started earlier and has been adapted into a T.V show), I have to say that it's this series that really makes him stand out as an author for me.
I'm completely and utterly addicted to this series, I read the first and second books in one sitting(thank God for e-books otherwise I would have had to wait), stopping only for lunch and supper - reading long into the night, and then read the third book the day after.
Please read these books - they seem painfully unappreciated, especially considering how good they are!