"I didn't answer, occupied in dissolving the penicillin tablets in the vial of sterile water. I selected a glass barrel, fitted a needle, and pressed the tip through the rubber covering the mouth of the bottle. Holding it up to the light, I pulled back slowly on the plunger, watching the thick white liquid fill the barrel, checking for bubbles. Then pulling the needle free, I depressed the plunger slightly until a drop of liquid pearled from the point and rolled slowly down the length of the spike. "Roll onto your good side," I said, turning to Jamie, "and pull up your shirt." He eyed the needle in my hand with keen suspicion, but reluctantly obeyed. I surveyed the terrain with approval. "Your bottom hasn't changed a bit in twenty years," I remarked, admiring the muscular curves. "Neither has yours," he replied courteously, "but I'm no insisting you expose it. Are ye suffering a sudden attack of lustfulness?" "Not just at present," I said evenly, swabbing a patch of skin with a cloth soaked in brandy. "That's a verra nice make of brandy," he said, peering back over his shoulder, "but I'm more accustomed to apply it at the other end." "It's also the best source of alcohol available. Hold still now, and relax." I jabbed deftly and pressed the plunger slowly in. "Ouch!" Jamie rubbed his posterior resentfully. "It'll stop stinging in a minute." I poured an inch of brandy into the cup. "Now you can have a bit to drink--a very little bit." He drained the cup without comment, watching me roll up the collection of syringes. Finally he said, "I thought ye stuck pins in ill-wish dolls when ye meant to witch someone; not in the people themselves." "It's not a pin, it's a hypodermic syringe." "I dinna care what ye call it; it felt like a bloody horseshoe nail. Would ye care to tell me why jabbing pins in my arse is going to help my arm?" I took a deep breath. "Well, do you remember my once telling you about germs?" He looked quite blank. "Little beasts too small to see," I elaborated. "They can get into your body through bad food or water, or through open wounds, and if they do, they can make you ill." He stared at his arm with interest. "I've germs in my arm, have I?" "You very definitely have." I tapped a finger on the small flat box. "The medicine I just shot into your backside kills germs, though. You get another shot every four hours 'til this time tomorrow, and then we'll see how you're doing." I paused. Jamie was staring at me, shaking his head. "Do you understand?" I asked. He nodded slowly. "Aye, I do. I should ha' let them burn ye, twenty years ago."