My legs were too exhausted to take any more stress— my knees gave out. I slid to the floor. For a couple of minutes I just sat there, staring at the closed blinds. I couldn’t believe it. Sean Leger had been in Mr. Draper’s classroom. Sean, my brother’s best friend. Don’t jump to conclusions, I told myself. Okay, maybe it wasn’t Sean. After all, I’d only seen the guy’s back. Maybe it was somebody else. A lot of guys probably looked like Sean from behind. And walked like him? And wore the exact same clothes? That was too much of a coincidence. Sean was definitely the person I’d seen in the hallway. So what if he was? Just because Sean was in Mr. Draper’s classroom didn’t mean he’d done anything wrong. I tried to come up with a reason—any reason—for Sean to be rooting around in that filing cabinet. I couldn’t think of a single thing. He’d pulled the keys from the first drawer he opened, so he obviously knew where they were kept. Maybe he’d taken them before.