Dr. Voss's classroom was empty after 6 PM. That was when Marcus and Kess found him, sitting at his desk, grading papers with a red pen. He didn't look up when they entered. He already knew who it was. "I was wondering when you'd come," he said quietly. "Kess, I'm disappointed. I thought I made it clear that you needed to stop asking questions." "We're not here to stop," Kess said. She closed the classroom door behind them. "We're here because we found your files. We know what's under the school." Dr. Voss's hand froze mid-stroke. He set down his pen very carefully and finally looked at them. In the artificial light of his classroom, he looked older than Marcus had ever noticed. There were lines around his eyes that suggested he hadn't slept properly in weeks. "Sit down," he said. They

