This book was amazing! I liked it a lot better than the first one and the new characters that were introduced made it so much more than the classic paranormal romance. I like that there is romance between the secondary characters so it does not get repetitive with just one couple. I also really liked the science/biology perspective of it and how it created a whole new idea of why the werewolves were changing. I always like when books look at things differently than all the others and this series definitely accomplishes that. 
 I felt like the writing in this book was a lot more mature and organized than the first one and I was hooked until the end! Can't wait for the third!