A/N: I do not own Harry Potter or DC comics.

July 17, 1991

The Batcave

Wayne Manor

Gotham City

The sound of a loud pop interrupted Bruce Wayne's focus on the batcomputer. Sighing, he looks up as he sees Harry standing there with a grin on his face.

"How many times have I told you not to apparate in here?" Bruce sighed, before standing up and pulling Harry into a hug.

"A million." Harry grinned at him. "I'm sorry Uncle Brucie."

Bruce shook his head in exasperation at the young boy. It seemed like only yesterday he went and confronted Harley and Ivy about Harry. And yet so much has changed since then.

"Where is Babs?" Harry questions. "We need to get ready for our lessons with John and Zatanna."

"She's upstairs in the dining room." Bruce told him. "She arrived just a few minutes ago."

Harry mock salutes him, before seeing what was on the batcomputer.

"Still after the Joker, huh?" Harry asks, sighing. That clown has been in and out of Arkham in the past 4 years more often than usual. It seems that when the Isley-Quinn Environmental Protection subdivision at Wayne Corp opened, it made Joker go crazy with rage. Wayne Corp was attacked at least once a month, whether it be the tower, armored trucks, or random office buildings.

"Yes." Bruce sighed. "I can't seem to track his movements this time. It's strange, he seems to be avoiding every way I normally can track him."

"Meaning he has outside help." Harry reasoned. "As if someone who is helping him knows how you track."

"Quite." Bruce stated.

"Jason?" Harry asked hesitantly. It had been over a year since Jason Todd came back to life as the Red Hood, but the hurt of his original death still shook the both of them.

"Can't be." Bruce looked down. "Even in his new way of life, he would never work with the Joker. If he did, Joker would be dead by now."

"Yeah." Harry sighed. He missed his friend. "Maybe you should contact Dick. He could help you find Joker."

"He's busy with the Titans right now." Bruce told him. "But I may do that once he is done."

Bruce noticed a figure approaching the mansion.

"You should probably get upstairs, Zattana is arriving now." Bruce told him.

Harry grinned as he apparated upstairs, causing his best friend to jump out in shock.

"Don't do that!" 15 year old Barbara Gordon shouted, lightly hitting Harry on the back of the head. She has been his best friend since he first became friendly with Bruce and those that the Batman knows.

Barbara was the daughter of the late Commissioner Jim Gordon. When Bruce heard of her father's passing, he was shocked. Jim had been a huge help to him, both as Bruce and as Batman. He was a friend to Bruce. He decided to adopt Barbara, but refused to let her become a vigilante like both Dick Grayson and Jason had done.

Turns out, Barbara was a witch, just as Harry was a wizard. In fact, she was one of the reasons Bruce knew to look at the Wizarding World when searching for any information on Harry. She currently went to Ilvermorny, the American school for wizards and witches. She was going into her 5th year there, and has already become a very powerful witch. Despite the advantage of being older, Zatanna told Bruce that she expects Harry to soon grow more powerful than her, as magic came naturally to him.

Harry grinned as he saw the front door open up as Zattana Zatara walked in, followed by John Constantine. The former was wearing her black leather jacket, shirt, and her fishnet stockings and boots. The latter walked with much more swagger than Zatanna, who walked gently with each step. John was wearing his tan trench coat over his rough looking shirt and red tie, a cigarette in his mouth

"Hey you two." Zattana embraced the two kids. "I am really sorry I was unable to make it to your birthday party Babs."

"It's okay!" Babs grinned. "I loved your gift by the way, thank you so much."

John smirked at Harry, rolling his eyes at the girls.

"Women, I tell you." he laughed. "But boy do I love taking the piss out of them."

"John." Zattana glared at him. "Focus."

"Right you are love." John winks at her, before they head to the room that Bruce set aside specifically for the training.

"Hey John?" Harry asks.

"Yeah kiddo?"

"When can I learn your magic?" Harry questions, his eyes eager.

"Harry I won't teach you that until you come of age." John looks at him seriously. "The magic I use is not meant for someone so young. I don't want you to lose your soul to a demon. For now, stick to your magic."

"Yes John." Harry sighed, rolling his eyes.

The four enter the training room, in which the two adults immediately turn on the kids. John's eyes meeting Harry's and Zattana's meeting Babs. Harry immediately felt pressure upon his mind, and pushed back. Since they had first started training with them, Harry and Babs were building up their Occlumency shields. Despite Legilimency being a power that few can use in the Wizarding World, those who can are the most powerful people in their world.

After a few moments, Harry managed to push out John, and saw Zatanna get pushed out of Babs' mind.

"Well done!" Zattana grinned. "I have no doubt that if Albus Dumbledore tries to invade your mind, that he will not see a thing."

"However." John warned. "Do not risk making eye contact with him no matter what. We do not want him to question where you got this training from.'

"Tell us again why you don't like Dumbledore?" Babs asked them, her eyes forming the puppy eyes that she knows gets them to fold.

"We've told you a hundred times already." Zatanna laughs. "What is so fascinating about it?"

"Just how dumb the Wizarding World is." Harry shrugs. "I still don't get why we have to go to Hogwarts. I already have a good grasp on my magic."

"You know, like we do, that Voldemort is not dead." John said seriously. "I've searched through Hell multiple times, he is not dead."

"And that Prophecy that was made." Zattana explains. "It may have been fake, but because Dumbledore and Voldemort believed it to be real, it turned into a self fulfilling one. Voldemort will not stop until you are dead, and Dumbledore will not stop until you are dead at Voldemort's hands."

"Right that Horcrux thing." Harry rolled his eyes. "Well now that you guys have got it out of me, that means that I can't afford getting killed. But if I were to stay here, then I could stay out of the crosshairs of them."

"I wish." John groans. "But those blasted Hogwarts letters. All Dumbledore would have to do would be look at the address and he knows where you are."

"I hate this." Babs frowned. "Why must Harry have all this duty thrown on him? I'd hate to think how unprepared he would have been if those relatives of his never took the vacation here."

"I'd have been forced into Dumbledore's manipulations." Harry told her. "So let's just say it was destiny I ended up with you guys."

"I know." Babs grinned at him, hugging him. "At least at Hogwarts you'll have me."

"You know you don't have to come with me." Harry told her. "It would be much easier for you to stay at Ilvermorny than to transfer to Hogwarts."

"I know." Babs laughed. "But if I didn't go to Hogwarts, who would make sure that you keep your toe in line?"

Harry just grins at her as he hears his phone ring.

"Hey Mom." Harry grins.

"Heya sweetie." Harley's voice came through the phone. "How's ya lesson going?"

"Extremely well." Harry told her. "We managed to push them out of our minds within 5 seconds."

"That's great!" Harley sang. "Could you invite Batsy and Babs over for dinner? We want to talk to Wayne."

"Of course I can!" Harry grinned, before frowning as heard the sirens in the background. "What's going on mom?"

"It's nothing baby." Harley said, suddenly nervous. "We are just at a Comedy Show."

Harry's eyes widened as his eyes flowed emerald. The code word for Joker's attacking set him into action. He hung up the phone, looked at his mentors and best friend.

"Comedy Show." He told them. He and Babs immediately appeared back down to the batcave, where Bruce was dressed in his bat suit. He nodded at them, his face grave, before jumping into the Batmobile and speeding out of the cave.

Harry and Babs ran to where the suits were placed, and saw the temporary suits that were made for them. They weren't allowed to fight crime until they were older, but the suits were just in case they needed to protect their identity.

They magically changed clothes, as they didn't have time to waste.

Babs was dressed in a purple batsuit that let her hair flow out the back of the cowl. The yellow bat in the center stood out, and it no longer seemed like she was a kid. Both her and Harry are tall for their age, around 5'5", so it wouldn't seem like they were too short.

Harry's costume honored his parents. The red and green batsuit had a diamond symbol in the middle of it, and the cowl was split in the middle, half of it red and the other half blue.

They turned on the spot and apparated to their destination.

Isley-Quinn Environmental Protection Division

Wayne Tower

Gotham City

The building was in chaos. Little chattering teeth were chasing innocents as they exploded, forcing the people into a giant huddle. Laughter poured through the screams as the attacker made his appearance.

His smile wider than his face, his yellow eyes dancing with humor, his white face and green hair made him completely recognized. This was the Joker. Batman's arch nemesis. The Clown Prince of Crime.

"Step away, Joker." Pamela Isley, the woman who used to be called Poison Ivy, called out, her red hair seemingly flaming as all the plants that lined the hall grew, vines threatening to attack the clown. "You know you won't get out of this. Batman will show up."

"I was counting on it, Ivy." Joker grinned at her. "And where is Miss Quinn? I'd like to have a word with that bitch."

"Right here Puddin." Harley called out as she swung her bat at him, only for another man to catch it.

This man was hidden in the shadows until now. His green robes, dark black hair and goatee were what made people notice him now. The sword in his hand made it clear who it was.

"Ra's Al Guhl." Pamela groaned. "Come on, Bats, hurry up."

CRACK!

The sudden noise made both Joker and Ra's cover their ears, as a jet of red light struck the Joker knocking him out and into a wall. The power flickered and shut off.

"Wizards." Ra's groaned. "Show yourself!"

"No." A female whispered. Ra's swung his sword in that direction, only for it to pass right through the area where the voice came from.

Another jet of light came, but Ra's was ready, and dodged it. The power flickered back on as Ra's looked around. No wizards were in sight. Unfortunately, in the search for the magicals, he failed to notice the approach of the Batmobile outside the tower.

The glass shattered as Batman swung in.

"Ra's." Batman sighed, his voice modified. "I should have known it was you who was showing Joker how to avoid my tech."

"It's always best to remain hidden and unknown." Ra's grinned at his ex student. "I taught you that. But you didn't listen."

"I learned that if I stick to the shadows, it creates fear, but they need something to fear in order for the fear to stick." Batman said, his mouth forming a line.

"You aren't going to send me to Arkham." Ra's acknowledges. "I'd escape too easily. And you won't kill me. I guess you have to let me go."

Batman shook his head. "I won't kill you, but you are forgetting who you are with. I won't kill you, but I won't stop them from killing you."

Ra's looks over at Harley and Pamela. Harley has her gun pointed at his head, and before he can react, the bullet in his head prevented him from saying anything.

Harry and Babs walked out of the shadows, and immediately they were hugged by Pamela and Harley.

"I love you guys." Harley grinned.

"Now what are we going to do about him?" Harry questioned, motioning towards the Joker, a voice modulator making his voice deeper and more raspy than usual.

"I'll take him back to Arkham." Batman stated, picking him back up. As Batman turned away, a voice called out from the shadows.

"You know that won't work." Jason Todd, The Red Hood, said as he walked into the room, his twin guns pointed straight at Batman. "He will escape like he always does and kill more people."

"If you kill a killer, the number of killers stays the same." Batman responded, motioning to Harry and Barbara to stay still.

"What if you kill two killers?" Jason questioned, one of his pistols moving to Harley.

"No!" Harry shouted in rage. How dare he threaten his mom. Jason turned to see Harry, but didn't have enough time to register his presence before he was slammed into the wall by a wall of pure magic. Harry's green eyes were glowing in rage.

"Calm Down Harry!" Babs yelled out. Wind was seemingly coming out of nowhere, her hair flowing out of her batsuit. Harry didn't seem to hear her as Jason was lifted into the air and slammed down into the floor.

"There's nothing we can do!" Ivy gasped in realization, "But we know people who can!"

Babs nodded and pulled out her wand, pointing at the window and shooting the red spark spell. No-Maj's would think it was just a firework, but Zatana and Constantine would know otherwise.

Within 15 seconds of the spell, both of them had teleported into the tower, Constantine immediately shielding all the others as Zatana approached Harry.

"MIH ESAELER, LLEPS EHT KAERB!" Zatana cast, causing Harry to lose focus as Jason gasped for air and scattered.

"What just happened?" Harry questioned his mentor.

"You lost control, as we all do on occasion." Constantine explained. "I'm just glad we stopped you before you killed him."

"He threatened my moms." Harry glared at the spot where Jason stood.

"I know." Zatana nodded. "When you lost control, your occlumency shields dropped. You have to make sure not to lose control like that near Dumbledore."

"I won't" Harry promised. "I'll have Babs there to stop me."

"Let's go home everyone." Harley grinned, kicking the body of Ra's as she passed by him.

Batman chuckled. Now that she was at least fighting on the right side, the once annoying antics became funny. He noticed no one was watching as he took the Joker and disappered. Back to Arkham he goes.

"Where's Bruce?" Ivy realized a few seconds later.