Tarnished Knight is a novel written by Shiloh Walker. It was first published in 2010.
One look at Jack Wallace and Perci knows he's going to be trouble. Even surrounded by soul stealers, he's a one-man wrecking crew. What does he need Grimm training for? He's already hell on earth, a warrior bent on destruction. And something... more.
He's too strong and fast to be a mere mortal. Even covered in blood, he makes her forget she's only here to do a job and get out. It's twisted. Sick. She hasn't felt this alive in three centuries.
Born with a natural talent for killing unnatural things, Jack has always known things he shouldn't. The fact that Perci is one of them glows all over her. Giving him an unholy urge to see just how far he can push her before don't touch me melts into touch me there.
When they come together, it isn't careful or cautious. It's heaven and hell, exposing all their raw and wounded places to healing heat, resurrecting memories of a destined love from the distant past. But the evil that destroyed them once before has tracked them here, threatening their second and last chance at forever. Demanding a sacrifice no one - Grimm or human - should ever be asked to make...