Darkness Dawns by Diane Duvall

Once, Sarah Bingham's biggest challenge was making her students pay attention in class. Now, after rescuing a wounded stranger, she's handed in the middle of a battle between corrupt vampires and powerful immortals who also need blood to survive. Roland Warbrook is the most compelling man Sarah has ever laid hands on. But his desire for her is mingled with a hunger he can barely control...In his nine centuries of immortal existence, no woman has tempted Roland as much as Sarah. But asking her to love him is impossible - when it means forfeiting the world she's always known, and the life he would do anything to protect.

My Review: It starts out with Sara trying to treat her insomnia by doing a little late night gardening. Til she some animal almost runs her down! She finds out soon that is was no animal and some guys are trying to kill a man out by her property. She kicks their ass and saves the man. She finds out that he's no ordinary man, but he's an immortal guardian, savior to mankind from vampires and other supernaturals. I completely fell in love with this story. It kinda had a Dark Hunter feel to it but I greatly enjoyed it and can't wait til the next one comes out.  Easy 5 stars in my book;)