Hermione was mad to put it simply. The boys had been messing around the day before the end of their final year and through a series of events she rather not think of it left her with a very broken leg for a week. She couldn't even enjoy her first few days of total freedom and was instead stuck on bed/couch rest for a few days as everything began fixing itself. She scowled as she heard her friends laughter in the yard. They were playing quidditch, she wouldn't play but it would be nice to at least be social. She looked at the book in her hands. She had read nearly every book in this house to start and she was already having to re-read the small collection.
"Not a good start for you is it?" She heard looking up to see Sirius with an empathatic smile. Through magic they didn't know Dumbledore had brought Sirius back from the other side even in death. They as a general rule thought it better to just accept it and not question it all.
"Not really. These books are not even accurate anymore." She grumbled.
Sirius laughed. "Yeah, most of them are as old as the house. Wait here, I will be right back." He said before leaving to rush up the stairs two at a time. He came back down a few moments later. "Maybe this book will give you ideas. I used to do a lot of work in trying to create new spells, maybe you can perfect some of my ones that didn't work to well and expand on others?" He offered her a small book that looked very battered.
"Really? Thank you!" She said leaning up the best she could to give him a hug.
"No problem, that has been through many years. I thought it would be good if someone worthy looked over it. Don't let anyone else know, they don't know how much I typically do these things. Would loose my player image if then found out I was working on my own spellbook...or the sheer number of books I had to read to make new spells. Let's just keep it between us okay?" He said with a smile that she quickly matched. He gave her another small hug before leaving her to pour over the book he had given her.
She meticulously went through the book finishing the day after her leg healed. Until she got to the final page.
"How to tell the girl you have loved and watched for two years straight that you are head over heels for her:
-find a good time to tell her, preferably when no friends are around
-give her something that she will love that is very important to you, books do wonders
-wait until she gets to this page so she can know
Hermione Granger, I love you. Be mine?"
She stared at the page before darting down the hall and knocked quickly and quietly on his door. He opened and looked at her with a small smile, "Yes?"
"Yes." She stated looking up at him. He broke out into a large grin.
"Well that went better than expected." He said before glancing down the hallway before quickly yanking her into his room. He repeated the same sly indecent with a different book a few years down the road with his marriage proposal. She returned the favour when she told him she was pregnant, though a book on how to be a father wasn't very subtle.