The facts flashed across my mind like puzzle pieces falling inexorably into place, each of them notching smoothly into place with the ones around it. The things Kelly was surprised by. The illegally massive dog with the induced reservoir conditions, and the casual way Dr. Abbey said he wouldn’t amplify, like she knew, absolutely, what she was talking about. The spiders, the bugs, and the octopuses with their grasping limbs and their staring, alien eyes. All of it made sense, if I just stopped trying to force it.

I turned toward Kelly before I realized that I was intending to move. Her eyes widened, and she took a step back, almost pressing herself against Maggie. Maggie gave her a puzzled look as she stepped out of the way.

“I don’t know what he’s so pissed about, but I’m not going to get in his way,” she said, in a tone that bordered on the sympathetic. “Better you than me.”

Alaric and Becks were watching me with confusion. Dr. Abbey turned to watch me advancing on Kelly, and there was no confusion in her expression, just calm satisfaction, the teacher’s face once more watching her student finally understand the lesson.

“The reservoir conditions are an immune response,” I said. It wasn’t a question; it didn’t need to be. I could see the confirmation in Kelly’s widening eyes. “They’re the way the body copes with the Kellis-Amberlee infection, aren’t they?” She didn’t answer me. “Aren’t they?!” I shouted, and slammed my hand into the safety glass.

Maggie and Alaric jumped. Becks stepped up beside me. And Kelly flinched.

“Yes,” she said. “They are. They just… they just happen. We think it has something to do with exposure in infancy, but the research has never been… it’s never…”

All my sympathy for her was gone, like it had never existed at all. I wasn’t seeing a person anymore. I was seeing the CDC, and the virus that took George away. “I’m going to ask you one question, Doc, and I want you to think really hard about your answer, because you’re legally dead, and if we want to hand you to this nice lady,” I gestured toward Dr. Abbey, “for her experiments, well, there’s really not much you can do about it. Don’t lie to me. Understand?”

Kelly nodded mutely.

“Good. I’m glad to see that we have an agreement. Now, tell me: The reservoir conditions. What do they do? What do they really do?”

“They teach the immune system how to handle an ongoing live Kellis-Amberlee infection,” said Kelly, meeting my eyes at last. She sounded oddly relieved, like she’d known we were going to wind up here and just hadn’t known how to force the issue on her own. “They teach the body what to do about it.”

“Meaning what?”