"Hadrian, wait please!" Lily shouted to her son, he was leaving and she didn't want to lose him again. 

The students around the halls parted ways for them all watching the snake. whispers of questions filled the hall as they saw Lily Potter trying to get them to stop. Who was this mysterious teen? 

"Hadrian, please." she had tears in her eyes and her voice was harsh.

"What do you want?" He turned sharply towards her. His eyes was filled with cold hatred everyone shuddered. He can definitely control a room with those Avada Kadavra green eyes. "You can't expect us to be a happy family. Your friends of yours back there want us in Azkaban. I heard them plain as day. Good day Lily Potter." Once he finished the three apparated away, it was only a second latter after Hadrian apparated with his friend while still in Hogwarts ground.

Which is something that is thought to be impossible. 

Somewhere in London...

They apparated into the living room, neither one of them spoke. Hadrian was stuck in his head going through all the memories he gathered just by staring at Lily's eyes.

It was heart break, filled years till a little one made their day. It was a true family one he wasn't invited to. Doing what he does best, he locked himself in the library, and read. 

Marcus knew to give his friend and brother some time with. What he saw was hard to even handle. Even with the small sliver Hadrian saw, the Potters moved on and even had another child. Which was the full heartedly family Hadrian has always dreamt of.  

Back at Hogwarts

"He should be in Azkaban. HE's a murder for goodness sake. He'll go out and kill again!" Mad-eye said "we can't give him a pass because he is a Potter."

"Mad-eye please" Dumbledore pleaded "The least we could do is get him back. You say he just apparated?" he asked Lily

"Y-Yes but I thought that wasn't possible in Hogwarts." 

"It may be one thing we understand when he means heir. Search for anything in the library. I'll go down to the hall of prophecy." Dumbledore told Lily "does anyone have an idea to get them back?" It was then that Remus spoke up.

"I think I have an Idea to get Hadrian out of hiding..."

A month went by it was slow for Hadrian but perked up when Marcus told him they got another Death Eater call this one Fenrir Greyback. A werewolf, one that works with the Dark Lord himself, known for killing children, and basically anyone who he deems fit to kill of turn. 

"I just got word, that there are Death Eaters hanging around Knockturn Alley trying to have some fun." Marcus came in to the library, finally something.

"Alright lets go you're coming with me. Right?"

"Of course, haven't been training with you for no reason this past month." Marcus through back to Hadrian as they made their way to the kitchen.   

Hadrian opened the fridge which needed to be restocked with food badly. He grabbed an apple and bit down while pulling on his cloak. Once Marcus returned with his cloak on they apparated to the alley.  

"Where were they last?"

"I believe right around the corner." They walked around till an abrupt scream sound filled their ears, looking at each other they both sprinted off to where the scream was heard. 

It must have been a lucky day for them, Fenrir Greyback, was holing a boy by the scruff of his neck, tears in his eye and feet dangling.  With the Joker mask on, Hadrian nodded to Marcus who knew the meaning and hid in the shadows of the small alleyway.

As if bored Hadrian cleared his throat and dropping the finished apple winning the werewolf's attention.  He smiled the 'I'll enjoy killing you' look which was creepy if you haven't seen it before or felt with but again only the masks smile could be seen. 

"Ahh the Joker, I was wondering when you'd get a call" he grinned, and dropped the boy, who then ran like his life depended on it.  Stalking forward, like a predator he was "here to kill me then?"

"Afraid so, Satan made good deal with me." Joker said, waiting for the fight to begin.  

Which was right about now, Greyback ran towards the Joker, he just stood there. Letting the cool blade slide down into his hands, feeling the touch of his trusted blade his hand griped the end. In one swift move, he let his trusted knife fly strate to the target.

Greyback's attention was on the Joker the entire time. And so the knife hit the target in the neck, just missing the artery as was planed. Which this allowed him to not die too soon but to writhe in agony to which he deserved. 

Joker then knelt next to him, while he struggled on his back, the knife was then pulled out making him choke in discomfort. 

"Oh dear me that was rather to quick for my liking," the Joker said in a disappointing voice while wiping of the blade off of the blood. "Well got to make it count." He then took his Joker card once again and sadistically cut out the Joker smile this time instead of a charm like the others. The Joker stood smiling at his handy work as the light in the eyes died, just like he did all those years ago.  Then suddenly three new cloaked figures in black apparated in the alleyway.

Death Eaters. 

"I'm afraid you are to late" the Joker said chuckling, he took out his wand as two separate spells zoomed towards him. He dodged with ease and practice, not ready to bring up his shield, it's been a while since he had a good fight. Lazily the Joker threw a blastung curse for the fun of it and hit one of the Death Eaters who then collapsed in pain. 

More pops of wizards apparating was heard, through a glance the Joker saw quite a few blue robed figures.

Aurors. 

They stood to the side not yet getting in the way, it seems they want to watch him do his work first which he was glad for a audience.  

One Death Eater that was angered ran at the Joker, to which he just stood and waited until the last second he stepped out of the way. Raising his arm, the Joker sliced the mans throat cutting the skin perfectly. The man fell instantly to the ground.

The act was so cold, violent, it made everyone watching withhold a breath.

Before comprehending the murder another boy stepped out of the shadows. He through a Killing Curse at the third Death Eater who was heading to the Joker. The two then fist bumped each other as in victory. 

It was like they didn't know they had a audience, but they knew about them. Quickly almost to fast to even see but in a blink of an eye all three Death Eaters lost their mask and the three Death Eaters had the Joker's smile made by his calling cards which was close by to the bodies.

The aurors then stepped forward, surrounding the boys slowly closing in around them. Knife still in hand, the Joker stabbed one of them closest to him. Which them enticed the others to attack.

They didn't kill anyone, even though they all know it was easy for them to do. One relished in the fear and violence while the other enjoyed a callous kill of ending it quickly. 

The numbers were dwindling, with various injuries but none that death threatened to take. The two were split up by the end, they were getting tiered from the battle at hand, but they didn't show it. 

In a mix of anger three aurors shot out a spell at once, the Joker had his shield up but was sent hurtling through the air and smashed to the ground a few feet away. Getting up the Joker saw three aurors with their wand trained on him. And soon a fourth joined them. 

The other boy was fighting off two aurors at once till he saw the four with Joker and cursed. He had the upper hand but lost it when four curses fired at once. The shear intensity of the four curses together, sent the Joker flying through the air once again, smashing against the far wall and laded in a heap on the stone steps of the old building. The aurors watched transfixed as the crippling wall, collapsed in a cascading motion. 

The two fighting the other boy took advantage of the situation and stunned the boy. One of the other aurors finally broke free of the shock of it all, the Joker was buried under the fallen rubble. 

The auror began to move the bricks and wood to find the boy. He was soon helped by the other three aurors as they frantically search for him. The Joker was soon found under a particularly heavy piece of rubble. Using the levitation charm, they got the piece off the now unconscious boy.  The first auror placed a shaking finger on the Jokers neck and let out a breath he didn't even knew he was holding.

"He's alive!" He informed the others and shared a look of relief. Even those he was a murderer, his was still a kid in definition, it would be hard to know they killed a teenager.  One of them picked up the Joker, who moaned in pain, in his unconscious state, "sorry kid." The man muttered as he apparated to the Headquarters of the Order of the Phoenix.