Title: Code of the Griffin

Author: Knife Hand

Feedback: Constructive feedback appreciated, flames unappreciated

Spoilers: Nothing Specific, general for first few books.

Rating: R

Disclaimer: I do not own Hermione, or Luna, or Ginny, or Cho, or....... I would buy them all but I am broke.

Summary: From a war ravaged future, someone is sent back in time to change the course of the war.

AN: In response to mwinter1's comment, Hermione is addressed as Lady Granger not Lady Gryffindor as Granger is still her surname (Lady Granger-Potter and Lady Potter are also acceptable). Her full title would be Lady Duchess Hermione Jane Granger of the House Gryffindor.

AN2: Casandra30, the reason she dropped Arithmancy as it because it is the mathematical prediction of the future. As she knows the future and intends to change it then she would not be interested in that class.

Hermione sat in her private Study going over the books. Far fetched holdings over the length and breadth of the old British Empire, trading companies, investments, institutions. She was going to have to get some help, and a visit to Gringotts as well. As the head of a Noble House, she had her own private rooms, accessible both from the Gryffindor common room and through a secret passageway. With a flick of her quill she delegated the responsibility of several estate managements to a proxy. Hermione was just running through a listing of properties she owned in Australia when a timid knock came on the door that led to the secret passageway.

"Come in, Harry." She called out.

Harry entered the room with a folder full of documents in his hand.

"How did you know it was me?" he asked.

"Well, you, Professor McGonagall and the Headmaster are the only ones who officially know about that passageway, although it would not surprise me if the Twins know. Professor McGonagall would not knock so timidly and Dumbledore would send for me rather than come himself, so it had to be you." She replied, motioning him to sit on the small sofa while she rose and took the single seater in the small lounge area.

"And the Twins?" Harry asked as he sat.

"They would burst in with a shower of wetset fireworks and try and get financing for one of their inventions." She replied. "So what can I help you with?"

"I have no idea what I am doing with any of these." Harry said in a desperate voice, holding up the papers that dealt with his estates as Lord Potter. "I'm still trying to cope with School, let alone all this on top."

"Well, you can delegate a lot of this to proxies. If you want you can keep whoever has been managing them since your Parent's deaths, but if I can recommend, I suggest you use this legal firm for proxies. They have served me well." She said handing over a card.

"White, Hussey and Harris." Harry read.

"Yes. I am represented by Hailey Harris but I hear Rachel Ponting and Julius White are also excellent. They are considering making Miss Ponting a partner. Also find out who your Personal Gringotts Representative is. Most major Houses deal with a single Goblin for all their transactions. House Gryffindor has Griphook."

"I've met him." Harry said.

"Look, we'll go to Diagon Alley and get you sorted out this weekend." Hermione said.

"We can't." Harry replied.

"Of course we can. School Rules state that any Ruling Lord or Lady must be allowed to conduct business in a timely fashion and may leave the castle to do so. The fireplace in here and in your study have floo access to Diagon Alley and about half a dozen other major European Magical Business districts."

"Cool." Harry said, then a chime rang. "Time to get to class."

Hermione rose and went back to her desk, strapping on the Gryffindor sword that was resting against the wall.

"You're wearing a Sword to class?" Harry asked shocked.

"It is the right of…" Hermione started.

"Ruling Lord and Ladies, etcetera." Harry said. "Man, how many other exceptions are there for Ruling Lords and Ladies?"

Hermione handed him a thin book from the shelf behind the desk with a shrug.

"You should think of getting a sword." She said idly. "Besides, it's Defence Against the Dark Arts."

"Right. You got a spare?" Harry replied, semi-seriously.

DADA was the most Hazardous class at Hogwarts. Both of the previous teachers had almost gotten Harry killed, one actually trying to kill him and the other by being a monumental prat.

"Oh yeah. Be there at that time." Hermione said, handing Harry another card.

"What's this." He asked.

"A start at winning the War." She replied and walked out.

Throughout the day owls would deliver several such cards to carefully selected students.

Hermione hung at the back of the class during the lesson about Boggarts, leaning against the back wall with a deadly grace that went unnoticed by the students and noticed but not quite recognised by the professor. Lavender had answered that no one knew what a Boggart looked like, the same answer Hermione had given her first time around, but that is not true. Hermione knew what a Boggart looked like, not that she would ever tell anyone. She was not proud of that day, a day when hatred and fatalism had overridden even the deepest fear.

She watched as each student faced their fear and made a humorous mockery of it. Then Harry came to the front of the room. Hermione moved before she could think, driven by the deep need to protect Harry. The Boggart had barely solidified into a Dementor before she slid between it and Harry with her sword drawn. It was then she realised her mistake. All the Horrors she had seen, and the worst one will now be set loose among the children. The Boggart shifted and solidified into a dark figure out of her nightmares. Dressed in black plate and chain mail, a wicked serrated blade in its hands. The figure stuck, not at her but off to her left. It stuck at Harry. She blocked the blow and stepped back, pushing Harry back with her. She was on the defensive. A flurry of blows went back and forth. Every attack Hermione launched was perfectly countered but at the same time her defence was impregnable.

"Moony. I can't beat this." She growled, stressed.

"Give me space." Professor Lupin growled back. "Everybody back!"

She felt Harry move away from her to the back of the classroom. She blocked another strike and kicked the figure, using the resistance of the impact to throw herself into a back roll. Once she was clear Remus stepped between the Boggart and the students. The Boggart sensed the teacher's deepest fear and changed into the moonrise. The Professor said the spell and turned it into a popped balloon which flew back into wardrobe.

"Sorry Professor. War memories." Hermione said the last so quietly that only the Professor, which his enhanced werewolf hearing, could hear.

"Alright. Class dismissed. Harry, Hermione, please stay a moment." The professor said.

The class filed out. Harry stepped forward from the back of the room while Hermione sheathed the Sword of Gryffindor.

"Would either of you like to explain what just happened?" Lupin asked.

"I am the focal nexus of a class seven temporal incursion." Hermione said.

"That's Hermione speak for 'I am from the future'." Harry added.

"Shut it Potter." She playfully snapped back.

"Yes Harry, I got that. Class five through nine temporal incursions are all backsteps." Remus said.

"I'm impressed." Hermione said. "Most Wizards have no idea what a temporal incursion is, and almost all Muggles think they exist solely in the realm of Science Fiction. So, do you know the criteria for a class seven?"

"Let's see. Backstep obviously. Minimum of twenty year displacement and most critically, it is a replacement jump." Lupin answered.

"Now I see why you were the smart Marauder." Hermione said.

"Um. Replacement Jump?" Harry asked.

"You inhabit your younger body. As opposed to a relativistic linier jump where your body comes back with you, like in the case of a Time Turner." Remus explained.

"Why else do you think Sirius is free?" Hermione asked.

"So you came back to free Sirius?" Remus asked confused. "A Class five would have done for that."

"No. I came back to save Harry." She replied. "And that is all I will say on the matter. Just be glad your innocent friend is free."

Hermione turned to leave, Harry following.

"If there is anything I can do to help…" Remus began.

"I will let you know." She said as they left the classroom.

Hermione marched through the crowded halls, a small gap opening up in front of her and closing again behind her to allow her unimpeded movement. Like a gap, whispers followed her through the hall as she made her way to Muggle Studies. When she arrived she sat at the back, rather than her usual spot near the front. The Muggle Studies professor was excited as he never had been before. It was not everyday that you had a Ruling Lady in your class, let alone one who was also a Muggle Duchess so he decided to deviate from his usual lesson plan and entertain the class.

"Across a ragged and crater filled patch of French countryside, two muggle armies faced off across no mans land. Darkness filled the battlefield, broken only by the flairs, similar to magical coloured sparks, blossoming in the sky created by the artillery peices. Poisonous gas and explosions made the entire front deadly, even when no one was specifically trying to kill you. Machine guns of the Kiser's army swept the trenches of the British troops and the occasional sniper shot. This was the scene of the last great Muggle war."

"WHAT?!?" both Hermione and Justin Finch-Fletchley, a Hufflepuff with a muggle parent exclaimed.

"Is something wrong?" the professor asked.

"You're saying that the 1914 to 1918 Great War is the last major muggle conflict recorded by magical society?" Hermione demanded.

This had certainly not been covered last time around.

"Yes. Why? Have there been others?" the professor asked confused.

"Just a few." Hermione said sarcastically.

"Like World War 2." Justin added.

"The Cold War."

"Vietnam."

"The Falklands."

"Bosnia."

"Korea."

"A whole bunch between Israel and Jordan or Egypt, or both."

"The Cuban Missile Crisis."

"Afghanistan."

"Iraq." Hermione finished. "And those are just the major ones."

"Oh my." The professor said.

"You! Sit!" Hermione commanded the professor, pushing him into her chair. "Take notes. Justin, give them a run down on the basics of the biggest events. Pick three, your choice."

"World War 2, Apollo Moon landing and the fall of communism ok with you?" he asked.

"World War 2 and the moon landing are fine. Keep it at that. We'd need to go through the rise of communism and the Cold War before we get to the fall." Hermione said, turning to leave.

"Where are you going?" Justin asked.

"To calm down so I don't go strangle Dumbledore for his hiring policy." She replied, then turned on the professor when he opened his mouth. "Keep quite and take notes. You're lucky I just don't fire you on the spot."

"You can do that?" the professor asked, shocked.

"Of course. I have full authority of Founder Godric Gryffindor." Hermione replied before sweeping out.

TBC…