She blushes slightly to herself, buried in a pile of books, researching the Tri Wizard Tournament excessively. She could hear a gaggle of girls giggling quietly, followed by a hurried hush from Madam Pince.

Yet she felt eyes on her - just the one pair. And was certain he was looking at her again. Chancing a glance over her shoulder, feigning annoyance at the girls, there he was, only just managing to turn his head back down to the (upside down) book in his hands.

Explain where you were last night.

WHAT.