It was Christmas night. Ron and his brothers and sister had left Hogwarts the day before to celebrate with their family for Christmas week, leaving Guest alone in the dormitory.

The castle was unusually quiet.

Then—

Three quiet, deliberate knocks sounded from the dormitory door.

His attention immediately snapped toward it. He hesitated, staring at the door as he debated whether he should answer.

Slowly, he slipped out of bed and crossed the room. His hand closed around the doorknob, and he pulled the door open.

Before he could even see who was standing outside, a figure suddenly slipped through the doorway and into the room.

The door swung shut behind them.

For a moment, he could only stare.

Draco Malfoy stood in front of the door…