Shades of Vengeance. Raven Point Pack Series, #4

Harper Gibbons only wants one thing: justice for her family who was killed by a group of rogue wolves. But while digging deeper, she's told she will need the new territory alpha's approval in order to move forward. There's just one problem with that. he's been dodging her attempts at contact and her patience has run out. Aiden Anders just lost his father and has taken over their pack while also being named interim-territory alpha.
He thought he was prepared, but as more disasters keep happening around their pack, he quickly realizes his previous alpha training only scratched the surface. When a hot-headed female shows up at his doorstep demanding help, he wants nothing more than to send her away, but his wolf has other plans. Together, Harper and Aiden learn they have more in common than they realize and they'll need to figure out how to work together for both their benefits.
That is, if they don't kill each other first. Fans of Young Adult Paranormal Romance full of shifters, sass, romance, and unforeseen twists will devour these books.