When classes finally let out Harry’s relief probably screams across his face and he begs off socialising, saying that he’s got a bit of a headache and plans a lie down. It’s not quite true but he does want to be somewhere quieter and more personal so he retreats into his bedroom and leaves Hermione reading about the Charm they were shown by Professor Branstone. He’s surprised when five minutes after he’s changed into something more comfortable and crawled into bed Marvolo emerges from his office, hours earlier than usual.