The girl’s head turned too. There, on the gravel-strewn shoulder of the road, was a boy. Not a dead boy. This one was very much alive. He was no more than ten, thin and dark-haired, with skin the color of chocolate. He wore faded blue jeans, sneakers—real pre-apocalypse sneakers—and a T-shirt with a full-color illustration of a grinning cartoon rat standing on a strange wheeled board. His head was shaved into a Mohawk that was dyed as blue as the sky above. The boy held a hand-crank firehouse siren, and he was working it with every bit of his strength, grinning from ear to ear while he did it. The dead seemed to forget all about the scrawny girl-flesh they had been seconds away from devouring, and instead began shuffling toward the boy and his siren. When they were a dozen feet from him, he began walking backward, laughing as the dead followed him. It was so . . . weird, so strange, so outside of all sense that the girl simply stood there, knife in hand, and stared slack jawed.