The Lone Alpha: A Knightwolf Saga:

When the lone alpha, Mackenzi "Mac" Knightwolf found out alpha Kaylyn Wolfer was planning an attack on her and her vampire neighbor's territory, she assisted Nirra and her team in taking out Kaylyn and her pack of rogue werewolves. Mac now finds herself in a sticky situation with an unknown killer wolf. Mac believes this killer is a rogue going feral and is mauling people to leave their bodies in her back yard in order to make her the prime suspect. Add on top of that, Mac's little sister c...