If we weren’t so frightened, cheap rolex watches we might have felt ridiculous, shuffling back and forth across the room in a tight cluster, trying to coordinate our movements—trying to imitate a flock of birds. My heart was pounding in my chest. I heard a roaring sound in my ears. It was hard to focus on our steps. I knew we were awkward, but we got better quickly. When we came to a wall, we wheeled and headed back again, moving in unison. I started swinging my arms and clapping with each step. The others did the same. It discout ugg boots helped our coordination. And we each fought our terror. As Mae said later, “It was step aerobics from hell.” And all the time, we watched the black nanoparticles as they came hissing into the room through cracks in doors and windows. It seemed to go on for a long time, but it was probably only thirty or forty seconds. Soon a kind of undifferentiated fog filled the room. I felt pinpricks all over my body, and I was sure the others felt it, too. David started ugg boots cheap sale moaning again, but Rosie was right beside him, encouraging him, urging him to keep it together. Suddenly, with shocking speed the fog cleared, the particles coalescing into two fully formed columns that now stood directly before us, rising and falling in dark ripples. Seen this close, the swarms exuded an unmistakable sense of menace, almost malevolence. Their deep thrumming sound was clearly audible, but intermittently I heard an angry hiss, like a snake.
     But they did not attack us. Just as I had hoped, the programming deficits ugg boots on sale worked for us. Confronted by a cluster of coordinated prey, these predators were stymied. They did nothing at all.
     At least for now.
     Between claps, Charley said, “Do you believe—this fucking shit—it’s working!” I said, “Yes but maybe—not for long.” I was worried about how long David could control his anxiety. And I was worried about the swarms. I didn’t know how long they’d just stand there before they innovated new behavior. I said, “I suggest we—move toward that—back door behind us—and get the hell out.”
     As we wheeled ugg boots on sale away from the wall, I angled slightly toward the rear room. Clapping and stepping in unison, our group moved away from the swarms, which thrummed deeply and followed.
     “And if we get outside, then what?” David whined. He was having trouble staying in sync with the rest of us. In his panic, he kept stumbling. He was sweating and blinking rapidly. “We continue this way—flocking this way—back to the lab—and get inside—are you willing to try?”