Well I decided to do a one shot of one of the rules. Enjoy.
Rule #10: The sword of Gryffindor is not Excalibur
It was a normal day at Grimmauld place. Or as normal it can get for a group of witches and wizards. Rose was reading a book about the origin of King Arthur and the great Merlin. Hermione saw her best friend was rather enjoying the book. It was very rare anyone saw Rose reading due to her life being rather hectic and dangerous.
But the peace was disrupted when Fred and George took the book from Rose.
"Hey give that back you two. I was reading that." she snapped.
"What is..." Fred started
"...this even..." George continued
"About" then they both finished at the same time.
"It's about King Arthur and Merlin." Rose said while everyone looked at the three.
"How exactly did Arthur become king?" Ron asked Hermione while she sighed.
"He pulled Excalibur from a stone. It was said only the true King of England could pull the sword from the stone. While Merlin led him to greatness." she explained as Ron, Fred and George nodded. But it the clicked.
"Wait wouldn't Rose be a female Arthur since she pulled the sword of Gryffindor from the sorting hat?" Fred asked.
Rose blinked at them as if he was crazy and Hermione shook her head at him in disbelief. Several others laughed at the question. Rose rolled her eyes getting over her stupidor. Sirius was just glad she was having fun now instead of worrying about Voldemort.
"Fred is right. Is it the same thing?" Ron asked.
"No. It isn't. The two swords are very different." Rose said finally speaking.
"Oh come on Rose. It is funny." Bill said smiling.
"So your majesty do want us to create you a crown." Fred asked laughing.
"Absolutely not! Let me make this perfectly clear. The sword of Gryffindor is not Excalibur. And it never will be." Rose snapped while a smile was on her face but they could tell she was rather serious.