A series of minute changes flicker across Lucas' face as his gaze darts back and forth across the page. His expression still inscrutable as he folds the letter from Ariel back up, carefully.

Then, he does as he's told: removing the sticky note and, with light pressure, applying it to Bash's forehead. Now, folding his hands together on the table in front of him, his grin draws up dramatically on one side. "I'd appreciate if you'd attend a couple of those DADA lessons after class - maybe the patronus training sessions. Ariel said she'd tell me something about lime wedges and the third grade if you don't."