Just Roll With It

Harry stared at Luna, narrowing his eyes as he tried to figure out what the blonde was doing. He decided that it couldn't make things worse to call her bluff, and might just save him from there being any issue at all. It was a fair bet that she was just trying to make him nervous because she knew he wanted to show Hermione a book.

"Luna, my dear, the day Ms. Granger is not tempted by the book is a day we should all be scared of. We all know anything from a book on forbidden knowledge to a cookbook would tempt her," Harry paused, pulling out the loosely bound tome. "Or a book I found on some awesome spells..."

Luna and the others laughed again at this, the leftover tension from their initial entrance finally leaving the room.

"I was going to ask you Hermione to help me learn them, but..." Harry shrugged. "It seems I've already mastered them all. You three might like to give them a shot though?"

The girls each looked excited to start learning, especially Hermione, who looked like the proverbial kid in the candy store at the prospect of learning from an entire book of magic she didn't already know. Harry grabbed the book and headed to the front of the room, jokingly grabbing a cloth-covered chair to use as a podium as he instructed them on how to use the spells he'd learned.

The entire time he was teaching, Harry was steadily pumping out a desire into the room to give the spells a spin, with all three girls looking progressively more bothered as he went on with his lesson.