A squadron of spectators screamed and hooted, and Liam could feel his legs lighten. It was possible. He could run at any speed now; he would accelerate and accelerate and accelerate. . . When Liam Walker joins a running club in New York City, it's with some trepidation. Liam has always loved running, but the world of team racing, and the camaraderie that goes with it, are new to him. Still, after years of stagnancy--working for the same magazine,...