Her Fated Alpha (Chelsea’s Alpha Book 1)

I'm a vampire huntress who's imprinted on by, and later mated to, a pack alpha. I moved to Harrisonburg, Virginia to take care of my cancer-ridden sister when I learn that a vampire is loose. The vampire kills my sister and the alpha of the Harrisonburg pack teams up with me to avenge her death. I slowly come to realize that he's my fated alpha.