Identifies nonhumans

Sanya frowned, examining my brother. "Who is the vampire?"
I felt Thomas stiffen in surprise. As a rule, even members of the supernatural world can't detect what a vampire of the White Court truly is, unless he's actually in the middle of doing something vampity. It's a natural camouflage for his kind, and they rely upon it every bit as much as a leopard does its spots.
But it can be tough to hide things from a Knight of the Cross. Maybe it's a part of the power they're given, or maybe it's just a part of the personality of the men chosen for the job-don't ask me which. I'm fuzzy on the whole issue of faith and the Almighty, and I swim those waters with extreme caution and as much brevity as possible. I just know that the bad guys rarely get to sneak up on a Knight of the Cross, and that the Knights have a propensity for bringing the truth to light.
I met Sanya's gaze for a moment and said, "He's with me. He's also the reason Akariel has a date with the inside of a vault."
Sanya seemed to consider that for a moment. He glanced at Michael, who gave a grudging nod.
The younger Knight pursed his lips thoughtfully at that, his gaze moving to the backseat.
Hendricks had woken up, but he hadn't moved. He watched Sanya with steady, beady eyes.
"The woman," Sanya said, frowning. "What is she?"
"Hurt," I said.
Something like chagrin flickered over his features. "Da, of course. You would not bring her here if you thought her a danger."


Small Favor Chapter 14, Page 115-116