Vanish by Sophie Jordan

Cassian finally convinces Jacinda and her family to come back to the pride. They aren't sure what awaits them. But Jacinda's sister, Tamra, finally manifests and is a shader. Jacinda is now struggling with her feelings for Will and her duties in the pride and the bond that she knows must happen with Cassian.

I enjoyed the second book. I liked the turn the book took. Tamra finally manifests but finds out she is not really cared for by Cassian, who she really loves. He only has eyes for Jacinda, who can't forget Will. Together the four of them end up going on a mission to try and save Miriam, Cassian's sister, from the enkros.