CHAPTER SEVENTEEN Christopher Blue sat skulking at the back of Ms. Belfry’s class. He knew she was Oliver’s favorite teacher and that made him all the madder. It had been just a few days since Oliver had humiliated him in the cafeteria, and though there’d been no sign of him since, Chris was still fuming. He’d spent the time plotting his revenge. His friend Kirsty leaned over to look at the angry doodle he’d scratched into his desk. “Is that your brother?” she asked. Chris ground his teeth together and nodded. “Yes. And that’s his head rolling away.” Kirsty laughed. “He really humiliated you the other day, didn’t he?” Chris’s gaze snapped up. He glared at her. “Me? It was you he dumped all that food on. Or have you forgotten?” Kirsty rolled her eyes. “I wasn’t the one who went skid