The place was getting colder. "Why?'' Jory wondered vaguely. He was about to fall asleep in the chair he had been sitting in and was completely unaware of what was going on around him.

Suddenly he bolted upright. It was them. The Dementors. Jory could feel the effects...the hopeless feeling creeping up on him. They'd need Patronuses. How many students here could cast one? He reached for his wand and gripped it tightly, his heart thudding rather loudly.