Best parts of this book: fun characters, fast pace, tight plotting, fascinating settings. I love the character of Devin/Deryn, and her relationship with Alek. I love Alek’s relationship with Count Volger, and the complication provided by Lilit. I love the amazing bizarre walkers and beasties.
Worst parts of this book: ends before a satisfactory resolution to the story, and the worldbuilding requires literal-minded people to squint and not think too hard. (Yes, worldbuilding is both worst and best.)
In a way, this is the best kind of sequel because it’s exactly like the first, but with a different plot and setting. If you liked the first book, you will probably like this. I enjoyed it very much.