(Hogwarts-Main Hall-December 1st-1976)

Harry sat down in his chair and Minerva turned to him "So, how is your relationship with Miss Black going?" Harry blinked at her "I don't have a relationship with Bella, I'm pretty sure that Remus is into her and her into him plus isn't it against the rules to have a relationship with students?" Albus chuckled "Wrong Miss Black Harry, my Boy, and there is no rule against it, plus she is only a year younger than you".

Harry rolled his eyes "I repeat my former statement, I don't think I have a relationship with Miss Narcissia Black, I am her tutor, her mentor and as far as I know, that is my job, now, if you'll excuse me, I have a class to teach" he stood up and disaparated, leaving a chuckling Minerva and Albus "Definitely a crush" "Oh yes, the young man is just in denial".

(Defence Classroom)

Harry sat on his desk as the students walked in, he flicked his Wand at the board which flew over to him, he wrote a word which had everyone muttering in joy The Patronus Charm, Harry grinned "The Patronus Charm, one of the greatest spells ever created in my opinion, it is a force of light energy that is power by your positive emotions, it can be used to fight off Dementors and Lethifolds".

Harry looked over them all "Another interesting fact is that the Dark Lord cannot cast this spell" most of them looked dubious "It is not that he isn't powerful enough, quite the opposite, he cannot produce the necessary emotions to cast this spell, it can only be summoned through the use of very powerful positive emotion, love is the best, observe" Harry raised his Wand and smiled "Expecto Patronum".

The silver Draconix flew out of his Wand and flew around the room before stopping in front of Harry, he turned to the class "it can also be used to send messages, like so" he turned to the Patronus "Padfoot, if that prank ward hits me, you will be pink for the next month" the Patronus flew over to Sirius and repeated the message "it will also last as long as the person concentrates on it and has the magic to power it".

Harry waved his Wand again causing it to disappear, he looked over his students "I will be teaching all of you to cast the Patronus charm, some of you will get it quicker than others, do not be disheartened if this is the case, not everyone understands the Patronus Charm, hell it took me nearly 8 months to learn how to cast it and it was desperate measures, it was between me and Dementors".

He looked over them and saw them nodding, Bella raised her hand, Harry looked at her "Yes, Miss Black?" Bella smirked "What is this rumour that the teachers put out about you having a golden Patronus that can kill Dementors?" Harry opened his mouth before shutting it again "I don't know how I did it, I just felt the need to stop them…Let me try something".

Harry closed his eyes and was still for a few seconds, his face changed from sheer concentration into determined…Love? It looked like love, he opened his eyes which glowed with power, he summoned his staff and thrust it forwards as the castle started to hum, his aura expanded "EXPECTO PATRONUM" Everyone watched as the silver Draconix flew out of his staff and sighed disappointedly before gasping as it changed into a golden colour.

Harry waved his staff causing it to dissipate "Is that good enough for you, Miss Black?" Bellatrix nodded "Good, I want you all to start practicing this lesson and we will continue on next lesson, this will not be an easy task, so your homework is to record the results you get for each attempt you make at this spell" they nodded and pulled out their Wands as Harry banished the chairs and desks to one side.

The students started trying to cast the spell, Remus thought on what Harry had said 'Love? Do I love her? I…I do' he raised his Wand and closed his eyes "Expecto Patronum" a silver mist appeared from his Wand, he smiled but continued to pour his feeling of love into the spell as the mist started to take form, finally, it formed into a raven which flew around and gave off a cry of superiority and love before dissipating.

Harry clapped as Remus fell on his arse from the drain of the spell "Congratulations, Mr Lupin, you have successfully done something that 78% of adult Wizards and Witches cannot, you created a Corporeal Patronus, take 50 Points for Gryffindor, you deserve them" Remus grinned at him tiredly and Harry rolled his eyes "Bet you are feeling fucking shattered, aren't you?" Remus nodded.

Harry chuckled and handed him a bar of chocolate "Eat it, you'll feel better. It's not surprising that you are so tired, you are forcing your positive emotions to become a source of energy which you are then forcefully shoving through a focus and then guiding with said focus, so it is a massive drain on you" the rest of the class blinked, it actually sounded a lot more difficult now that he had explained it.

Severus sighed as he went over the information in his head 'Love? Love is difficult, I love Lily but she is more like my little Sister, do I love anyone like that…well there is that fifth year who is always so kind, I will ask her, I will try' Severus raised his Wand and Lily, Harry and the Marauders stopped to watch "Expecto Patronum" the silver mist formed and Severus used his Occlumency to direct his emotions.

He continued to direct his emotions as he watched his mist begin to shape itself, it continued to do so and everyone watched in anticipation, it finally found its shape in the form of something almost human, everyone stared at it in confusion until Harry gasped "A fae? You're Patronus is a fae? Who the hell were you thinking about? No, don't answer that, that was a personal question".

Harry watched as it dissipated and Severus crumpled to his knees, he walked over and handed him a chocolate bar "Take this and fifty points, you have earned them" he looked at the rest of the class "For each Corporeal Patronus from now on, the caster will gain 35 points for their house" James thought about his parents for a moment before his mind went to Lily.

He waved his Wand, he was going to get this spell, if only to defend those he cared about "Expecto Patronum" the silver mist formed before dissipating, he continued to try until he nearly knocked himself unconscious, it was only the hand on his shoulder which stopped him from continuing, he turned to Harry "If you get frustrated, the spell will not work, take a break and think over what you have learned".

He turned to see a rather frustrated and scowling Sirius as he waved his Wand around trying to produce more than a little bit of mist, Harry sighed "That is enough for today, class dismissed, Mr Black and Mr Potter, stay behind, not you Regulus, you can go" Harry watched as the other students left before turning to his younger Father and Godfather "Do you know what I see when I look at you two?".

They shook their heads "Potential, truckloads of potential but you are wasting it, neither of your grades, except in my class are what they could be, I know I don't have a right to rant at you James, as I am not your Guardian but I do have to ask, do you really think Lily will go after someone who isn't trying his hardest to make a life for himself?" James opened his mouth to retort only to fall short.

Harry looked at the two of them "I am so disappointed in both of you" they both felt like shrinking into the earth below "There is a war going on out there" he gestured to the window "And what are you doing to prepare for it, playing pranks, you Marauders lay 3 pranks every two to three days, this must take a lot of time away from your studies and making an actual life for yourself".

A house elf popped into the room and handed them all a drink "What are you doing to prepare yourselves for what is out there? Do you think pranks, a low grade point average and laziness will save you in the war?" the two hung their heads and Harry sighed "Siri, Jimmy, I don't want you to stop playing pranks, I just want you to spend less time on pranks and more on improving yourselves".

He looked at them both "If you actually applied yourselves, you could do anything, you could start a business, you could run for Minister of Magic, you could be champion athletes or Unspeakables or even the two best Aurors of the century, please just think about it" the two stayed silent and Harry let out another sigh "James, you are free to go" James sent a look towards Sirius before leaving the room hesitantly.

Harry looked at Sirius "Sirius, look at me" Sirius looked up "I told you, during earlier October that I expected you to be the best that you could be, your grade average in your other classes hasn't improved, hell, Bella has caught up to you and she was two years behind in everything" Sirius winced and Harry sighed again "You Mother is turning up with your Grandfather in 9 days, I want to show your Grandfather that you have improved and that he doesn't need to Duel me for your Guardianship".

Sirius opened his mouth "I" "Damn it Siri, I love you all, all of my wards, you are like my Siblings, I don't want to lose you, if I lose you to Articus do you think I will be keeping Narcissia, Regulus or Bellatrix, I don't even want to think about what would happen to Bellatrix if I have to Duel Articus and I end up losing" Sirius paled as he realised the implications of his actions, his cousins and Brother were affected by his decisions.

Sirius looked at him with a determined expression "Can you ask my other teachers for my homework again, I wish to try again at it, hell, I'll even ask Evans to tutor me and if I can get James to understand, maybe she'll tutor him as well" Harry nodded "I will be contacting James' parents anyway, I need to ask them about a trip for the class and given that James is in it" Sirius nodded and left the room.

Harry ran his hand through his hair before walking into his office 'Time to face the music and meet the Grandparents' 'You'll be fine' Harry smiled 'Thanks Hogwarts' he felt anxiety 'What is it?' 'can you call me by my actual name, the name that my parents named me?' Harry blinked 'Sure, what is it?' 'Cassandra or Cassie for short' Harry smiled 'Cute, thank you for trusting me Cassie' he felt a wave of happiness, affection and…love across the bond.

'I would trust you with anything' Harry smiled before walking over to his Floo, he threw the powder in and called out "Potter Manor" he kneeled on the cushion he put there and stuck his head in "Hello? Mr Potter? Mrs Potter?" an older voice called back "Hello?" he looked over to see an older couple both were easily in their Fifties of Sixties "Hello, I am your Son's DADA teacher, can you come through please?" the older couple nodded and Harry stepped away from the Floo as they came through it.

He gestured to the seats in front of his desk and waited until they sat down to sit down himself, he smiled at them "It is a pleasure to meet the parents of such a fine young man, James is one of my favourite pupils" they smiled and then Harry's face turned serious "And that is why I had a rant at him today" they looked at him in shock "Your son's grade point average has only improved in my class since the beginning of the year, I pointed out to him that there is a war going on outside".

"I'm sure you have likely heard the rumours about my battle with Voldemort" the older couple nodded "Well, I did face off against him, I held him at a standstill but what your son doesn't seem to realise is that I am just one man and if the war ends somehow before he finishes school, Pranking is not going to help him in his future, so I had a bit of a rant at him and Sirius Black and I think I have gotten through to them".

James' Parents nodded "It is about time, we are doting parents as he is the only child we have ever been able to have, so we don't shout at him or rant at him, I'm glad someone did" Harry sighed and smiled at them "Now that that is out of the way, let's start over, hello, I am Professor Hadrian Gryffindor, the Defence Against the Dark Arts professor and your Son's personal tutor in DADA, Charms, Astronomy, Runes and Swordsmanship, it's a pleasure to meet you".

The man chuckled "I am Charlus Ignotus Potter, Lord of the Most Ancient and Noble House of Potter and this is my wife, Dorea Circe Potter nee Black" Harry nodded "I see, I wanted to ask your permission for James to accompany my class on a field trip into the Muggle World, it will be sort of an impact trip to show them how much the Muggles have improved and they have, do you mind if I show you one of these developments?" the parents shook their heads, they didn't mind.

Harry opened the desk draw and pulled out a small pistol, he placed it on the desk in front of him "This is a pistol, it is the basic firearm that Muggles use" Harry opened the window and levitated a box over to it "And this is what it does" Harry aimed the pistol and fire, the box was sent flying out of the window at high speeds, he looked at the Potters "If that box is found, it will have holes right through it".

"Muggle firearms use something called bullets, they are small metal projectiles that are fired off by a small gunpowder explosion, it means they go fast and hit hard, no Wizard or Witch has been stupid enough to stand in front of one to see if the shield charm works against them, so as you can see, this is going to be a very educational trip, so, do I have your permission?" the parents looked at each other before turning back to him and nodding.