This book was enjoyable. As for the overall mood, it was both tense and relaxed. The book started off with a trap gone wrong, which felt relaxed and carefree compared to the rest of the book. Of course, they were chased multiple times, so cue the tense running away scenes. This whole book could be summarized with those two words: running away. 
 Maybe others would call it character development, but for me, the ending was kind of sad, the main character ended up doing what she didn't want to do in the first place. Instead of shaping the world, she became someone's puppet. Hopefully, it's only temporary. Really looking forward to the second book.