HP: In The Magical World As a An Extra [ Chapter 131 ]

Andromeda frowned but nodded in understanding, "I understand why he would want to go, but the only reason you can attend is due to your being Heir Black, and my allowing it and the fact that I will be accompanying you as your magical guardian." 

She explained though they both knew that because of the contract she signed that second didn't really apply and it was merely for appearances sake.

"I don't think that it will be likely that the headmaster will allow for Harry to attend," she said shaking her head, "I can already predict several arguments he'd have against the matter."

Magnus frowned and nodded, he could think of just as many and sighed, "it's okay, I thought as much thank you anyway," he told her before making his way to the Ravenclaw table and let himself slip into his thoughts as he started to think on just how he could use Pettigrew's trial to the utmost of his benefit, only to be broken from his thoughts by Erebuse's voice in his mind.

'Those are some rather dark thoughts you are having,' Ererbus thought in his mind, his tone not judging but at the same time with a note of worry in his words.

'I'm just trying to think of how to make the most of this whole situation, I wanted to make ripples and change things, if I'm giving up the advantage of my future knowledge in this area the most I can do is make sure that I get the absolute most out of it,' Magnus defended those particular thoughts.

'Perhaps, but those particular ideas… are you sure you want to go down that route… are you sure you'd be capable of doing so?' Erebus asked, the concern clear in his tone.

Magnus swallowed and let out a slow breath, 'truthfully no, but what other options do I have.'

'You could just let things play out in the direction they are going and hope for the best,' Erebus voiced, though his words were hollow.

'Even you don't believe that,' Magnus said before cutting the conversation short as he looked up to see Harry and Neville coming into the hall.

Getting up from his seat Magnus made his way over to them and shook his head when Harry looked at him with a hopeful look in his eyes.

"Sorry Harry, I talked with my Aunt, she doesn't think it will be possible for you to go, the headmaster isn't likely to allow you out of school to attend a trial when you don't have to." He explained.

The hopeful look Harry had vanished and was replaced by one of disappointment, but he nodded all the same, "Okay Magnus, thanks for trying."

Magnus nodded but held his hand out to Harry, "even though you can't be there Harry, doesn't mean he isn't going to get what is coming to him, I'll make sure that he pays for what he's done, I swear it." He told him, his tone hard and set.

Their eyes met and Harry nodded once as he took Magnus's hand, "I know you will," Harry told him as he took his hand to shake in agreement.

"I'd say good luck," Neville commented, "but with all the evidence against him there really is no way for him to get out of this."

Magnus nodded as he and Harry broke the handshake, "I know," he said before turning to leave them as he began to make his way back to the ravenclaw tower and his trunk office, he needed to do some research on just what he had planned.

….

-Time skip-

Magnus sat at his desk in his office with three large tomes open in front of him as the air around him seemed to shimmer and his eyes were a blur to anyone looking at him. 

His hand then reached out to the desk drawer and took out the open pocket watch that lay inside it and closed it shut returning the air around him to normal as he closed off the time dilation effect.

'It's always amusing watching you with that pocket watch active,' Erebus voiced in his mind as he sat on his perch at the side of the room.

Magnus snorted and rubbed his eyes as he recalled everything that he'd just read in the past hour, his plan could work.

There was nothing stopping him as it was all perfectly legal, but there would still be the drawbacks that he would suffer from it, but he could deal with them if they happened. 

He just needed to confer with Ted to get clarification on whether or not he was within his rights.

It was the very next second that the mirror in his desk drawer began to vibrate making Magnus chuckle as he took it up and Ted's image appeared on the mirror front, "your ears must be burning, I was literally just about to try to get a hold of you," he mused.

"A happy coincidence then, because I just got some rather disturbing news from your grandparents' portraits that you need to hear," Ted told him before turning the mirror away from him and the next second the portrait of his grandmother appeared on the mirror.

"Grandmother, what's going on?" Magnus asked, concerned about what she had heard.

"Magnus," Walburga nodded, "Last night your grandfather and I were called to our portraits in the Black vault by Phineas, to inform us about a despicable plot that he has overheard against your uncle." She explained before she began to recount just what Phineas had told them he had overheard.

Magnus's frown deepened as he listened and he internally cursed, he should have expected the old goat to try to pull something like this. 

Since he knew he couldn't stop Sirius being found innocent he was doing the next best thing to make it impossible for Sirius to try to claim Harry's guardianship in order to keep his control over the Potter heir.

By using his time in Azkaban to have him be declared mentally unfit and physically incapable to care for a child.