Wolfsbane (Nightshade #2) by Andrea Cremer

I loved this book as much as the first installment. In this second book, Calla has run away from her union with Ren when she thinks she will have to kill Shay as a sacrifice. She's then captured by the Searchers who end up being different than what she thinks. Her pack is suffering for her running away. Major changes happen and loyalities are divided and tested. Calla along with the Searchers attempt to save her pack and fight back against the Keepers (and her old pack) who want them to stay slaves and not really know their true history.

The characters are gut wrenching at times. Especially trying to feel Ansel's pain about being stripped of his wolf. Calla is brave and tries to right the wrongs she made by running away. She's conflicted about Ren, worried about what happened to him, and grief stricken when she realizes the choice he made, which wasn't her. Shay is there to support her and become her alpha and lead the new pack if only she chooses him.