Hey, this is my first DBZ/HP fic and I hope you guys like it. There will be a few changes in the story:

Goten was born a few weeks after Trunks so, he was born before the Cell games.

A.N- This takes place in the second book of Harry Potter.

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Chapter 1

"I'm going and that's final!" Chi Chi Son growled at her husband. Goku shook his head.

"No way am I allowing you to watch the Cell Games live," he said. "If you die, then-"

"You will be there to protect me won't you?" Chi Chi snapped.

"I can't always be there Chi," Goku pleaded. "Besides we need someone to look after Goten."

"He'll stay with my dad, and I want to be there!" Chi Chi yelled. "I want to make sure you stay alive."

The arguing continued for an hour until Goku gave up and said, "Fine but make sure you're close to one of the Z warriors ok?" Chi Chi nodded.

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(The end of the Cell Games)

"Bye, Gohan, I'm proud of you," Goku said as he used Instant Transmission and teleported himself and Cell to another planet.

"DAD!" Gohan yelled. He could hear his mother scream as well. My mother… what have I done?

Suddenly, Cell's ki reappeared. Gohan turned to him, full of rage and grief.

"You're not dead!" He growled. Cell sneered.

"I am not, and you will pay!" he growled. Powering a ki blast, he randomly aimed it at the Z fighters and he shot it… straight at Chi Chi.

"MOM!" Gohan screamed as the blast hit her straight on and blasted her to her death.

Cell laughed. "Did I touch another nerve there, Gohan?"

"You bastard," Gohan hissed, now seething with rage. Screaming, his ki skyrocketed and kept on going up. The Z warriors were blown away by his aura, and Cell crossed his arms over his face to protect himself.

Gohan looked up at Cell. "You will pay, Cell, for everything you did to Earth and to my PARENTS!" With that yell, he charged forward and before Cell could react, he was blown to bits.

"Unbelievable," Vegeta muttered. "He blew Cell to bits in less than a second! The brat has ascended to another level of Super Saiyan!"

Gohan immediately powered down to his normal state and ran towards his mother. "Mom! Please don't die on me, MOM!" He was sobbing uncontrollably now, but his mother lay dead.

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A few months has passed since the day Cell died, and a few months since his mother and father refused to be brought back to life.

"What do you mean!" Bulma demanded when she heard.

Please understand, Bulma, I am only trying to protect Earth Goku said from the Other World. And Chi is perfectly happy with me here.

Gohan couldn't believe his ears. His parents were leaving him with his brother here, they won't be coming back.

Now Gohan, we will be expecting you to be taking good care of your brother and remember your studies! Chi Chi said.

Gohan nodded numbly as his parents said goodbye and ended the conversation there; he turned around and flew off the lookout. Bulma made a move towards him, but Piccolo stopped her.

"Leave him to his thoughts for a while. He just had been told his parents didn't want to be back on Earth, he needs some time alone," he said.

Trunks had left and came back after 2 weeks, saying his mother had died from an accident and he had decided to stay here. Gohan felt better, now that he has a friend who is only a few years older than him.

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It was summer, or more precisely, July 16. Gohan and Goten were at Capsule Corp. with the Briefs.

Suddenly a very old man appeared before them wearing very strange robes. He smiled.

"I am glad you are all here," he said. Vegeta growled, jumped up into an offensive stance, both Gohan and Trunks stood up.

"Who are you and what do you want?" Gohan hissed. After the death of his parents, he has been colder than his usual self, which nobody blames him for.

"Please sit down, I mean no harm," the old man said. "Let me explain."

Gohan and Trunks sat down, but was still very cautious of the man, and Vegeta refused. "Just tell us, old man, or I'll blast you apart," he growled.

"This does not concern you, Mr. Briefs," the old man said. "It only concerns Mr. Gohan Son and Mr. Trunks Briefs."

"Vegeta, sit down, if he does anything threatening then we would take care of it," Bulma scolded. Trunks and Gohan perked up at their names.

Scowling, Vegeta sat down muttering, "He's an old man, how can he be threatening?"

"What about us?" Trunks asked. The old man averted his gaze towards him.

"I've been examining you for the last month or so," he explained. Vegeta stood up again.

"You've been stalking us?" he growled.

"Now I didn't say that, did I?" the man said. Vegeta scowled and sat down again. The old man continued. "I've been watching your movements and your daily activities and I've come to a conclusion that you," at this he pointed at Gohan and Trunks. "Are wizards."

"Wizards, that's crazy!" Bulma cried. "Why should we believe you anyways? We don't even know your name or who the heck you are!"

"My name is Albus Dumbledore," the old man said. "I am the headmaster of Hogwarts, School of Witchcraft and Wizardry."

"This man has gone insane," Gohan said. "I am NOT a wizard." Trunks nodded his head in agreement.

"I assure you, Mr. Son, I have not gone insane, and you are a wizard," Dumbledore said.

"I know magic is real, but I am sure wizards are not," Bulma said.

"Shall I show you then?" Dumbledore asked. Bulma nodded. Trunks shrugged, Gohan rolled his eyes and Vegeta scowled. Goten and Chibi Trunks stared at the old man, giggling.

"Accio cookie dough ice cream," Dumbledore muttered. To everyone's surprise, a tub of cookie dough ice cream zoomed towards Dumbledore; he caught it and showed everyone.

Vegeta scowled and swiped the ice cream out of Dumbledore's hand and started eating it. Gohan raised his eyebrow in amusement.

"That still doesn't mean we are wizards," Trunks said, rolling his eyes at his father's antic.

"I have been watching you, and I've figured that you are," Dumbledore said, patiently. He took two letters out of his robe and handed it to the two boys. Gohan and Trunks took it. "What I am saying is the truth. And lastly, only at eleven years of age are the wizards allowed starting, they cannot start after that age." He looked at Trunks. "I do not know why I did not notice you before, so I have decided to do a little spell, if you wish."

"What do you mean?" Trunks asked.

"To make you an eleven year old, so you may enter Hogwarts, you will still have all your memory you have now," Dumbledore reassured. Trunks looked doubtful.

"I still don't believe you nor do I trust you," he said. But then how come a part of me says he's saying the truth and I should trust him? Deciding that he will trust that part of him, he nodded.

"But if anything odd happens, and I suddenly die or something, you will have a very painful death, you understand?" Trunks said. Dumbledore's eye twinkled as he nodded.

He muttered something incoherent and light surrounded Trunks. When the light disappears, a younger-looking Trunks stood in front of them.

"We will be getting your reply before August 31, term starts September 1," Dumbledore said. "I hope to see you there." With that said, he suddenly disappeared from the room.

Gohan looked at Trunks, up and down. "You look my age," he said. "Good enough evidence for me."

Vegeta scowled and ate his ice cream. Chibi Trunks pointed at Trunks and giggled uncontrollably. Bulma picked him up. "You'll look like that when you grow up," she cooed. Gohan turned to Trunks, and they both sighed.

"Looks like we'll be going to this Hogwarts," Trunks said. Gohan nodded, he picked up his brother and walked to Bulma.

"Can you take care of him while I'm gone?" he asked politely, a bit of his old self shining through.

Bulma smiled at him. "Of course, Gohan, I'd take care of him even if you didn't ask!"

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So ends the first chapter! Review please!