Some kind of vampire magic designed to keep some poor fool from taking a bite of a Master Vampire’s prey. Vampires can smell it from the newest hatchling to the oldest doddering geriatric.” His smile was real, but his eyes were solemn. “It’s considered rude, unless it’s one of your own . . . people, someone who has to go out and about among our kind, and you want to protect them from other vampires.”
