"[i]MacFusty?[/i]"

Siobhan stopped like a deer in the headlights, mouth open slightly with whatever she was going to say to Kyle dying in her throat. "Uh... yes, sir?" she croaked out, flipping the page in her textbook mindlessly. The Gryffindor in front of her snickered under his breath, but she couldn't find the time or motivation to glare at the back of his head. Trish, she was sure, looked ridiculously smug, even without turning to see her. "That's me."

Why on earth would Slughorn be looking for her?

The youngest MacFusty nudged Kyle's foot under the table, trying to get his attention. She raised an eyebrow, eyes wide open in panic, in a universal gesture for [i]what is going on?[/i]