It can’t have been more than ten minutes before Mahir pulled open the van’s side door and climbed inside. It felt more like ten years. Becks kept typing the whole time, fingers dancing across her keyboard without missing a single stroke. She was brilliant, beautiful, and brave as hell. If anything proved how fucked-up I was, it was my inability to tell her any of those things. All I could do was hurt her, and having already done it once, I wasn’t exactly racing to do it again.

“Right,” said Mahir, settling next to Kelly as the door shut and locked behind him. “Unless we’ve got any more messy good-byes to make, I suppose we’d best be on our way.”

I nodded and started the engine.

Maggie stayed on the lawn as we drove away, waving at first, and then just standing there, a small figure surrounded by a teeming sea of tiny dogs. Her image dwindled in the rearview mirror, disappearing and reappearing as we went around the curves in the driveway, until finally she was out of sight for good. Sanctuary was behind us, and we were well and truly on our way.

The plan called for us to drive down the length of California before cutting across through Arizona, New Mexico—the desert states. It wasn’t the most efficient route, but it took good advantage of one of the bigger weaknesses of the infected: the heat. We had to cede Alaska because frostbite doesn’t do much but slow a zombie down until it becomes fatal. The deserts, on the other hand, were one of the first things we managed to take back completely. The human host of the active virus still needs water, still needs shade, still collapses with heatstroke and sunstroke, still putrefies, and maybe even dies from the bite of a rattlesnake or the sting of a scorpion. There are no resident zombie mobs in the deserts of America, and while even the driest desert can sustain life, very little of that life is big enough to cross the Kellis-Amberlee amplification barrier. If we encountered any real threats, they’d be fresh ones, and that limited their potential numbers.

The relative safety of the desert made our route less suspicious, even as it meant that we’d need to stop regularly for water and watch the van to be sure it didn’t overheat. It was a small price to pay for potentially making it to Memphce to palive. Most of the checkpoints just waved us through, the guards too anxious to stay cool to do more than the most cursory of tests. That suited our needs perfectly.