The sound of her shoes hitting the treadmill was a noise Cadence Findley had grown to love over the last year and a half. Sometimes she didn’t even listen to music when she worked out, preferring to focus on the sound of her rubber soles thunking against the endless black road beneath her feet. She knew she was running particularly fast when it sounded like a heavy deluge was falling, and by now she could usually tell when she’d reached thirty-five miles per hour without even glancing at ...