Louis was TIRED.
The train ride had dragged on forever, and the feast had felt like an entire school term of its own. Or, maybe, the lion boy was just hungry. He hadn’t had a proper meal since arriving at King’s Cross, after all, since he'd been too distracted to eat anything more than an apple during the feast.

Pulling his robe off because walking up the stairs had left the boy feeling like it was still the middle of summer, Lou walked into the common room.

OH.
The welcoming party thing, right.
Louis eyed the Lion topiary warily as he walked toward the only three people already in the room. “Professor Flamsteed. Professor Bentley.” He gave them both a smile before his curious blue eyes fell upon the tables covered in all sorts of delicious treats. Awww mannn, cauldron cakes!
Louis reached out to grab one, but then remembered his manners. “May I take one?” he asked, turning to the professors.

That’s when he noticed the third figure.
Heyyyyy! “HC!” He grinned at the third year. What was she doing here already? “You waste no time, do you?” He chuckled softly, shaking his head.