After at least an hour, the door slid open so forcefully that it recoiled from the wall. The glass shuddered, and so did Hermione, who came to alertness with a rapidity that left her panicked for a second or two. "Oh," squeaked a tiny Gwendolyn Morgan. "I’m sorry! I’ll find another seat." The future Quidditch player spun and nearly ran, slamming the door behind her with a force that Hermione believed was simply uncontrolled.