Great humour. Harry’s mesmerized eye and the “nose in a book” angle when we see the cover show his deep absorption in the book in a clever and amusing way. Even if I was fully prepared to see him get ideas from it, he managed to surprise me. *giggles*
There’s something very sweet and endearing about his question. I love Severus’ look when he notices Harry’s antics. The wonderful half-smile, eager eyes and approving eyebrows all say “yes”.