13 Lady Douglas held out her hand as Drifter finished his perusal. “Then do so with me.” He studied the light as it turned black and shook his head. “I can’t use you. You have the wrong blood type.” She gave him a blank look. “This isn’t common knowledge, but not all blood is the same. Many people have many different blood types.” “Well, mine’s not yellow, if that’s what you’re meaning,” Sarah spoke up as she glared at the machine. “And it’s not black, neither.” “The black is merely a sign of incompatibility,” Drifter assured her as he ran the wand up and down the servant’s body. Sarah stood as stiff as a statue and with eyes as wide as saucers. Drifter finished and backed up. The light at the tip changed to black, and the cloud on his forehead darkened, as well. He pursed h