Dogs of War (Peter the Wolf, Book 2)

After moving in with the Preston family, lycanthrope Peter Holmes is finally coming to terms with the side effects of his parents' sexual abuse, his cursed animal nature, and the death of his twin sister Heather. But Peter's steps toward a more peaceful life are halted when school rival Jake Forrester tells him that his sister isn't dead, and that Heather has been held prisoner, forced into a lifetime of torture porn.

Feeling guilty for his past attacks on Peter, Jake is offering his help in finding Heather, and he's bringing along some of his friends for backup. But even if this ragtag group can mount a rescue mission, the ancient creature keeping Heather prisoner is too strong for anyone to fight. Someone will have to pay the cost for Heather's freedom. Peter is prepared to pay anything, but Heather's owners have a price in mind that even he may not be able to pay.