The Vampire's Alpha Mate by Amethyst Peters

Cade
I just want to live a normal life. My cabin in the woods provides the isolation I need, and Shadow Falls is the best place for an ancient vampire like me. A vampire with a past.
Once, I was an agent for the Arcane Affairs Agency—a secret organization that investigates paranormal crimes. I’m not anymore.
Now there’s been a murder-suicide in my town. Everything about it is suspicious, and it stinks of homicide. I don’t want to take this case. Heck, I'm a lumberjack, and I have a sleigh to make for Christmas.
I've always been reluctant to let anyone intrude upon my life. Since I’m no longer an investigator, I have no reason to get involved in this case. But Augusta has come poking around town—and she’s everything I’m not.
Despite our attraction, she needs stability. I’m a man who’s never kept a woman for longer than the night.
My life is simple. Everything I do is based on rules. They keep me alive. They keep things professional. And I don't want this case. Also, I don’t want or need a distraction. Not even one from the infuriating, lovely, and voluptuous Alpha tiger shifter, Augusta Seabrook.
But what if we’re fated mates? I’ll have to decide between my rules or my heart. Whatever I choose—someone is going to get hurt.

Augusta
My boss shot down my marketing idea and passed me over for a promotion. Not to mention, my controlling boyfriend and I broke up. Deciding to protect my heart, I packed up and left it all behind.
I’ve come to the small town of Shadow Falls. It’s perfect. Except, I'm out of my element here. To make matters worse, a really beautiful ancient master vampire with tattoos, Cade, lives in Shadow Falls. Even though he’s tough, there’s something lonely about him.
He doesn't want me or anyone else to bother him.
But something’s not right in this town. How can I stay away when I’ve learned that everything is not what it seems in Shadow Falls?
If Cade wants me to stay away from him, though, then I will.
My plans to do just that fly out the window when a mysterious man begins stalking me. Now, the only person who can protect me is Cade.
In my family, a shifter is forbidden from falling in love with a vampire. No problem. Cade, who’s haunted by his past, wants nothing to do with me.