Both Harry and Luna were looking forward to their first lesson with their new mentors, and they both arrived at the statue of Boris the Bewildered, puffing and smiling excitedly. Harry placed his palm on the rock, and immediately they began to shift aside, eventually leaving a narrow corridor leading to the room which Harry had completed the Power Ritual in. As soon as they stepped inside, the wall closed behind them and the corridor lit up with the flickering flames of the torches on the walls. When they exited the corridor, both of them found themselves stunned at what faced them. Both Harry and Luna knew that it was simply an illusion, but it was amazing all the same.

They were stood in the middle of the school's Quidditch pitch, and after walking out into the middle it became obvious that the room had been expanded to be about the same size – an incredible feat of magic. Still awed, the two jumped slightly when the voices of Dilys and Armando came from behind them, and the two young adults fell over when they saw the ex-Headmaster and ex-Headmistress standing – in the flesh – directly in front of them. Dilys chuckled quietly at their expressions, while Armando went for an all-out belly laugh. "Don't be so surprised, it's just an illusion – this room is virtually a replica of the Room of Requirement, and since you two needed tutors it freed us from our paintings for the time being." He looked a little down when he finished the explanation. "We will be forced back into our respective portraits when we leave here however."

Harry caught the resentful tone from Armando and smiled reassuringly at him. "Well we'll be in here a lot, so get used to it."

Harry's comment having brightened his tutors' day, Dilys began the training in earnest. She paced in front of the two young adults while twirling her wand in-between her fingers, her grey hair trailing behind her in the wind. "Dumbledore has been, and is a disgrace to the light for not training you Harry. The fact that you are now bonded and you have both received a considerable boost to your powers warrants a course of intense preparation – and not in the normal school subjects either." The old woman turned to Luna and raised an eyebrow. "You have noticed your new power, have you not?"

Luna nodded and cast a sideways glance at Harry. "Yes, I've been refraining from casting spells for the past week ever since I transfigured a tea-cosy into an elephant – I had to obliviate the entire class including Professor McGonagall, which I really didn't like doing."

Harry raised his eyebrows, and looked a little bit hurt. "Luna, why didn't you tell me?"

Her silver eyes turned to face him, and she didn't look the least apologetic. "I was going to tell you at the end of the week, after we had gotten completely settled in together." She lowered her eyes to the ground and blushed lightly. "I want to take this slow Harry, I'm not used to having a friend let alone a soul-mate – I need time."

Harry immediately felt guilty, and placed a hand on her shoulder – causing the young woman to look up into his eyes. "I understand Luna, I would never force you into anything – and I'm sorry that I assumed you were holding something back from me."

She nodded and smiled up at the raven-haired Wizard before placing a quick kiss on his cheek and nuzzling against his chest. The two students completely forgot the presence of their tutors, and jumped when Dilys cleared her throat. The quickly broke apart and turned to see the reactions from their teachers, sighing in relief when they saw the matching smiles on their faces. "I'm glad you held back Luna; without knowing how to control your magic you are extremely dangerous – which is an issue you and I will be addressing this afternoon."

Harry frowned and was about to open his mouth when Armando clapped him friendly on the back and led him over to the other side of the field with a wide grin on his face. "You're with me Harry, and from what I can gather you might have a natural talent for our training today." The training, it turned out, was pulling pranks – something that had Harry questioning why it would be useful in the fight against Dumbledore and Tom Riddle. His mentor's answer was far more sombre than his introduction to the training. "Don't be deceived Harry, pranks can save your life. You need to learn how to fully use your wandless and thought-based magic to its full potential; if you can distract you enemy for a split second by summoning a furry pink rabbit, then so be it."

Over the course of the next five hours, Harry learnt just how much he had underestimated the use of the spells he had always considered as entertainment. In a mock duel between the mentor and his student, Harry found himself thrice confronted by large pink rabbits holding flags which proudly displayed the slogan "Potter Loves Luna!", and he had to admit that they were immensely distracting, and gave his mentor the hesitation he needed to petrify him each time – even though Harry was expecting it.

On the other side of the field, Luna was working just as hard – and found herself straining with her newfound power. Eventually she collapsed to the ground in exhaustion, and Harry sprinted over to her from the other side of the field, his face creased with worry. "Luna, are you alright?"

She panted softly and smiled reassuringly at Harry. "I'm fine, but I just can't seem to control the power – I always use too much."

Harry nodded, and suggested she rest for a few minutes before taking Dilys to the side and explaining the spell he had used to control his own powers. Dilys listened carefully to Harry, and nodded at his suggestion. "I think that it might be a good idea to perform the same spell on Luna, Harry. She is not quite as powerful as you – so I suggest you lower the power limiters slightly." Harry nodded and quickly performed the calculations in his head, leaving Dilys quite flustered when –within ten seconds – he pulled out his wand and cast the spell confidently at Luna. Too late, the ex-Headmistress forced Harry's arm aside – and she looked at him with no small amount of fury. "How could you?"

Harry was completely at a loss as to what he had done wrong, but he found out a moment later when the woman yelled right in his face – missing the shocked and astounded looks that she was receiving from Luna and Armando. "She trusted you, and you cast a spell that needed careful modification without a second thought!" A realization was beginning to dawn on Harry, and he tried to interject but found himself forcefully cut off by the livid Witch in front of him. "You have no decency Mr Potter, and I find it a disgrace that you would act so recklessly towards your bonded."

She turned to stride away from the stunned boy, but froze when he spoke quietly behind her back. "The Sonorous charm has the levels gauged and regulated by a power matrix, which can be calculated and by extension rearranged by placing the constituent elements into a mathematical equation. I simply rearranged the matrix to suit Luna's needs, applied the modified algorithm to the base on which I originally created the spell, rearranged the elements mathematically to suit her gender and element preference, and then reconstructed the spell into its finished form." The stunned Witch turned slowly around and saw her Charge's eyes glowing firmly at her. "I could go into the mathematics, but I would be wasting the remaining hour we have here, and then some." His eyes pulsed slightly, and the elderly woman unconsciously took a step back. "I would never do anything to intentionally harm Luna – and I most certainly would not cast a spell on her unless I had checked it over for inconsistencies and dangers several times beforehand; which is exactly what I did."

His eyes slowly dulled as he took in a deep breath, and then calmly walked over to Luna, who was still sitting, shocked at her boyfriend's words, before sitting on his haunches in front of her. "Did you really do all that in such a short time Harry?"

In harsh contrast with his previous outburst, he looked away sheepishly and scratched his head in embarrassment. "Well…yeah…I kind of studied a lot more than people thought in my time here – I just keep my grades a bit lower than average to not raise suspicion."

"But it's impossible…" Harry turned around to face Dillys, a curious look on his face with no hint of the anger that had been there previously. "Such a spell surely could not be modified in such a short amount of time…"

Harry shook his head in disagreement. "I never thought so; I was always especially talented with numbers and complex calculations and soon after I started Arithmancy I bent it to my needs." He gave his teacher a cheeky wink, which prompted her to look at the young boy, who only moments before had been equally as furious as her, amazed. "I did cheat a bit though; I already performed the brunt of the modifications after the Power Ritual, so all I needed to do was substitute in some values and tailor it slightly for Luna."

Turning back to his partner, he smiled and helped her to her feet – not missing the still-stunned look on her face. "When we start studying together you'll see just how dedicated I am; my legendary dedication – or immense lack of – is a bit of a façade to curb the attention away from me." Luna just had time to have the thought that Harry would never stop surprising her, before said Wizard clapped his hands excitedly. "So, let's see you in action!"

In her head however, he quickly supplied her with the safe word and the specifics – information which she absorbed like a sponge, and then smiled warmly at Harry before retreating back to her own mind with a lingering 'thank you' in his head. Looking slightly apprehensive about the situation, Luna turned towards a small boulder nearby and quietly muttered the curse in her mind, a second later the Reducto curse speeding from the tip of her wand and blasting quite a hefty chunk of rock from the boulder. Her eyes widened and she jumped happily around for a few seconds before engulfing Harry in a hug. "Thank you thank you thank you!" She giggled and broke away from Harry excitedly, before running around for a couple more minutes with a wide grin on her face. Harry was smiling just as happily when she returned to his side, and he quickly leant down and whispered something in her ear – something that made her grin return full force.

Her empty hand shot out, and the already ruined boulder exploded into a fine dust, before quickly being sucked back together with a hastily cast Repairo from Harry. Luna looked down at her hands in shock, and Harry saw them begin to shake. He quickly lifted her head up, and forced her eyes to lock with his. "Don't you dare think that – you are not a danger to anybody except those that are worthy of such peril; you will not hurt anybody - I promise." She searched his eyes worriedly for a few seconds before she allowed herself to accept his words, and stop shaking in fear. Harry hugged her tightly for a moment before letting her go, and with absolutely no warning to his mentors whatsoever – not even a battering of his eyelash – Harry dredged up an old memory and forced it into the air around them. Dumbledore's voice echoed angrily in the field, "This is unacceptable!"

Harry was glad he had given his girlfriend a warning through their link, else her reaction may have been the exact same as Dilys' and Armando's. Both of their faces drained of all colour, and they spun wildly around – attempting to locate the dangerous Headmaster – freezing when they both felt wands pressed against their necks. "You, dear sir and madam,"

"Are dead." Finished Luna and she lowered her wand from the ex-Headmistress, while Harry grinned cheekily at Armando.

It took a couple of seconds for the entire situation to sink in, but when it did Armando let out a great belly-laugh and clapped Harry appreciatively on his back, before pulling Luna into his side as well. "Oh you two are going to be an absolute pleasure to teach!"