“Yes, he did, brother. And it got him killed. I know it’s not something we talk about, but those are the facts. You stand the Mercy and you figure some things out, believe me. Our father didn’t go out there to let it go. Whoever thinks so doesn’t understand the first thing about him. He went out there because he just couldn’t stand not knowing, not for one more minute of his life. It was brave, and it was stupid, and he got his answer.”

“He saw a Walker. At Milagro.”

“Maybe he did. If you ask me, he saw what he wanted to see. And it doesn’t matter either way. What difference would one Walker make?”

Peter felt badly shaken by Theo’s hopelessness; it seemed not just defeated but disloyal.

“Where there’s one, there are others,” Peter said.

“What there are, brother, are smokes. All the guns in the world won’t change that.”

For a moment no one spoke. The idea was in the air, unspoken but palpable. How long did they have before the lights went out? Before no one remembered how to fix them?

“I don’t believe that,” Arlo said. “And I can’t believe you do either. If that’s all there is, what’s the point of anything?”

“The point?” Theo peered into his cup again. “I wish I knew. I suppose the point is just staying alive. Keeping the lights on as long as we can.” He tipped the shine to his lips and drained it in one hard swallow. “On that note, it’ll be daybreak soon, everyone. Let Caleb sleep, but wake the others. We’ve got bodies to take care of.”

There were four. They found three in the yard and one, Zander, on the roof, lying face-up on the concrete by the hatch, his naked limbs sprawled in a startled-looking X. The bullet from Peter’s rifle had blasted through the top of his head, shearing off the crown of his skull, which was hanging kitty-corner by a flap of skin. Already the morning sun had begun to shrivel him; a fine, gray mist was rising from his blackening flesh.