Harry peered into the classroom, wondering what he'd heard in the hallway. His heart nearly stopped when he saw what was inside. That couldn't be... no, it couldn't... not standing there with Snape...

And then, the sight that had frozen him disappeared. He exhaled suddenly, and Snape whirled around at the sound. "Get out, Potter," he snarled. "Nothing to see here but a boggart." Harry didn't move. Snape pointed angrily. "Now!"

Wordlessly Harry turned, thoughts racing through his head. It didn't make sense. How could that have been a boggart?

For what he'd seen in that room had been his own father.