Instead, she’d spent the day buried in the medicomp files, studying the virus: its specific structure, the proteins that made up the walls and receptor nodes, the genetic payload it carried inside. The hospital had some incredibly advanced genetic equipment, some of the same old devices they had once used for genetic modification—everything from curing diseases to changing eye color—but all the people who knew how to use them had died in the Break. It was ironic, in a way, that they had such incredible technology, from a time so recent, that no living person could understand. Sometimes Kira almost thought of them as magic: mystic artifacts from some forgotten civilization. Dr. Skousen and his researchers studied them in darkened rooms, surrounded by the ancient tomes of their craft, but the magic was gone. They could find the genetic coding in RM, but they couldn’t change it or even read it. All they could do was watch, and guess, and hope for a breakthrough.

Kira had found no breakthroughs. There were four days left.

She walked slowly through the city, eager to go home and collapse into sleep but still aimless, in a way, as if her brain were too tired of focusing, and wanted simply to meander. She followed it through the darkened city, passing quiet houses and cracked sidewalks and dirty roads beaten smooth by traffic. At night East Meadow seemed almost as empty as the outside world—the omnipresent plant growth was kept in check by the sheer mass of people and animals, but the houses were just as dark, the streets just as empty, the world just as quiet. In the daytime the city was populated but sparse; in the night, it was just another part of the ruin that covered the world.

Kira rounded a corner and realized where she was—where she’d been walking, subconsciously, since the moment she left the hospital. Marcus’s street. She stood on the corner, unmoving, counting down the houses five, four, three, two, one and then his on the right. He’d lived with an older man for several years, then moved in with another foster parent when the first man died, and when he turned sixteen he moved out into his own place. It was no big deal, moving; all you had to do was find a house in good condition, clean it up, and there you were. The owners were all dead, the banks were all defunct, there were more than enough for everyone to have two, five, even ten houses if you wanted them. Long Island had been home to millions of people. The old world had been consumed with the search for More Stuff. Now there was more stuff than anyone could ever use, and little or none of anything else.