Sorry for the long update, but I've been in Hong Kong for the whole summer till now, and I don't have any internet in Hong Kong. And then our computer lost all the data, so we had to recover it….. So sorry! But here's the next chapter anyways!

Don't own DBZ or HP.

XXX

Gohan and Trunks sat, fidgeting in Trunks' case, in front of Dumbledore's desk with the Professor across from them. Professor McGonagall stood behind him, glaring at them with her stern gaze. Well, Dumbledore didn't look all that pleased either, and to tell the truth, Gohan didn't really blame him.

"Well," the Headmaster began, "what do you boys have to say to me? You created havoc in the Quidditch stadium, and we were forced to usher the students back to their houses, leaving the Gryffindor team no time to celebrate their victory."

"Sir, it was just a misunderstanding between us," Trunks tried to explain.

"Oh, it sounded much more important than a misunderstanding," Dumbledore said sharply. "There is much you two are hiding from us, and I would like to know about it. The information I gathered from that 'misunderstanding' is not quite enough. I need to know the rest."

Gohan's head flashed up, his eyes hardened. "What do you mean 'information'?" He asked quietly, trying to be polite, but his anger showing.

"Oh, I'm sorry," Dumbledore's tone was apologetic enough. "I didn't tell you boys that I know the language of Japanese. I heard every word you said at the stadium."

"You were listening on us?" Gohan said angrily.

"My boy, it was quite hard not to."

"Gohan," Trunks said gently. "We agreed we were going to tell him anyways." Gohan simply frowned and looked away.

"We agreed that we were going to tell him only," he corrected, his head tilted towards the standing McGonagall. Unfortunately, the professor of Transfiguration heard them and was quite angered.

"That's preposterous! There's nothing that's going on here without my knowledge! I'm the head of your house; I have the right to know!"

"That's enough, Minerva," Dumbledore said. McGonagall looked even more ferocious. "I have this under control. Well, Mr. Son, Mr. Briefs, if you're going to tell me this, you should know that if it is important enough, I will tell the rest of the staff, Professor McGonagall included. If you choose not to tell me, I will have no choice than to expel you two from Hogwarts." McGonagall looked more pleased now, the anger fading away.

Gohan's anger, however, was far from fading away, his father's words flashing through his mind. "You can't expel us! This is a matter of life and death!"

"Well, that's the more reason to alert all the staff members. You should know I trust them all with my life," Dumbledore replied calmly.

Gohan bit down on his urge to yell out, 'Well, I'll have to say your life is in danger!'

"I'm very sorry Professor, but our agreement only included you," Trunks said. "If you expel us, the life of one important student could be lost." That hint definitely got both teachers' attention.

"Harry Potter is still my student," McGonagall huffed. "Plus, what could losing two first years do to Potter's life-span?"

Dumbledore now looked quite concerned. "No, Minerva, they're telling the truth. If that is what you really wish then, Minerva, please leave."

"Albus!" She gasped in surprise. "You mean you actually believe them?" Dumbledore nodded solemnly. "Fine!" McGonagall left in an indignant manner, and both demi-saiyan could hear her curse with their superior hearing.

"Now, tell me about this matter," Dumbledore said. "You have my full and undivided attention."

"Do you believe in aliens, sir?" Trunks asked. Dumbledore raised an eyebrow, but he nodded nonetheless.

"I believe in many things, Mr. Briefs. Aliens happen to be one of them."

"Then I guess it would be less of a surprise to say we, me and Gohan, are half-aliens," Trunks said, surprisingly calm, as if he had memorized it beforehand.

"Half-aliens?" Dumbledore muttered to himself. "That's one thing I've never heard before."

"Both our fathers were from an alien race called 'Saiyans'. Our mothers are humans," Gohan butted in. Trunks gave him a funny look. "I thought you wanted me to tell the whole thing," the look practically said. Gohan ignored it, he was getting impatient.

Dumbledore nodded, his interest piqued. "Continue."

"The Saiyan race was a race of barbarians. They scour the universe, destroying all life on many planets to sell them off. My father landed here on Earth, as a baby, to do such things. However, a kind old man picked him up from the space shuttle that brought him here. Then one day, my father hit his head horribly on a rock, and he forgot everything, including his job to destroy Earth. From then on, he grew up and trained with the old man, joining many martial arts tournaments."

"Now, hold on. Did these Saiyans have some kind of magic or power, if they were so powerful to destroy all these planets?" Dumbledore asked.

"We call it ki; it's our life force, practically. Every living thing has ki, naturally, however, Saiyans have an extremely large amount of it, and has the ability to control and manipulate such force," Trunks explained. "There are certain humans who have more of it and some who have less. Our human friends are a few of the rare people who have more of it, and have learned to manipulate it."

"And from what you are telling me now, Saiyans must look somewhat like humans, am I right?"

"Yes professor. The only difference is that a Saiyan has a tail. And whenever a Saiyan with a tail looks at the moon, he or she changes form into a huge ape with enormous power. Most Saiyans can't control themselves when they're in this form," Trunks continued. "But the Saiyans or half-Saiyans on this planet have cut off their tails to stop the transformation."

"And I assume you people protect the planet?" Dumbledore inquired.

"Yes sir."

"Continue on, then."

"Well, we explained pretty much what we are, and what we can do," Trunks said. "You can ask us questions, I'm sure you have many."

"I do," Dumbledore confirmed. "Just how strong are you 'Saiyans'?"

Gohan hesitated for only a moment before answering. "Did you hear about that being called Cell?"

"I have some recognition of that name, yes," Dumbledore murmured. "Ah, he was the fellow rumored to have incredible strength, isn't he?"

"That rumor wasn't for nothing," Trunks said darkly. "He did have incredible strength, enough to destroy islands, cities, towns as if they were nothing but tools of amusement to him."

"Yes, my memory is coming back now," Dumbledore nodded. "Many wizards were killed by him. He first appeared in Japan didn't he?"

"He was killed there too," Trunks said.

"Ah yes," Dumbledore raised a white eyebrow. "By that man named Hercules. However, I have always believed there is something behind that fact."

"There is," Gohan said coldly. "Hercules only claimed the victory, he didn't achieve it."

"No human on Earth was capable of destroying Cell," Trunks filled in. "Wizard or Muggle."

Dumbledore nodded. "Who was it then?" His eyes flickered towards Gohan. "My first guess would be your father. He was an acclaimed fighter wasn't he?"

Gohan looked away. "It wasn't my father." Dumbledore nodded slowly, waiting for the correct answer. "It was me."

XXX

Minerva McGonagall was a patient person. She could wait; she knew she could, as she stood beside the two goblins blocking the doorway. She trusted Albus thoroughly, she knew he would tell her, or if not her, the Order. And then, she would have to be told, as she was part of the Order. She told herself this many times, but as time passed by, doubt began to eat at her.

She probably should be at the Gryffindor Tower, watching out for any 'incidents' that could happen during the party the Gryffindor team should be throwing. She never did like leaving those mischievous twins alone without someone looking after them. However, she had an uneasy feeling about those two Japanese students as well. Could she count on Percy Weasley to control those two little miscreants? She doubted it. The twins loved bothering the Prefect. It probably would be even worse…

Her thoughts were interrupted when the goblins standing guarded suddenly jumped aside to reveal Dumbledore and the two first years. "Well," Dumbledore said contently. "I must say I understand now, and you two are dismissed from your earlier behavior. However, it must not ever, ever, be repeated. Do you understand?"

"Yes sir," Trunks said obediently. Gohan nodded, his body already half turned to head back.

"So?" McGonagall asked, no doubt wanting to know what had happened. "What's going on Albus?"

Trunks gave the Headmaster a doubting look. Was he going to tell everything?

However, to both students relief, Dumbledore simply gave her an apologetic smile. "I'm sorry Minerva, I truly am. However I promised these boys to keep their little secret, which I plan to."

"Excuse me!" McGonagall was surprised; she had trusted Albus to tell her everything!

"Minerva, you must understand," Dumbledore said, almost sorrowfully. "They had a very good reason to only tell me. This is not an issue of trust, Minerva, I trust you completely. But, it is not my secret to tell."

"I understand," McGonagall said shakily. "Fine. Off you go, Son, Briefs. There's a party you are missing in the Gryffindor tower."

Trunks bowed to both professors before following his already-leaving friend. "Gohan! Wait!"

McGonagall turned to leave to her office but Dumbledore's voice stopped her. "Ah, Minerva, please tell all the staff to leave those two alone if they're doing anything strange. They have my permission to do as they will. Only I will be the one to punish them if I see fit."

McGonagall opened her mouth to protest, but shut her mouth immediately. If Albus trusted them this much, she could too. Even if she had no clue what was happening. "Alright Albus, I'll trust you. But I can't say the same for the others."

XXX

"That went well," Trunks said, stopping at the fat lady's door. "What was the password again?"

"Cofeelings," Gohan muttered as the fat lady swung open. "What kind of passwords are these?"

"Well, they're really random, so we can probably never be able to sneak into other dormitories," Trunks shrugged.

They weren't exactly surprised when they saw hordes of people cheering and laughing when they stepped in. There was a party after all. Hermione got away from it and went up to the two boys. "So?" she asked nervously. "How did it go?"

"It went well," Trunks answered. "According to plan."

"He believed you," Hermione said, relieved. "Well, I guess that isn't much of a surprise." She smiled happily. "Come on then, we have to tell Ron and Harry! Now where are those two idiots…?" The bushy-haired girl dragged the two demi-Saiyans towards the crowd of happy Gryffindors. Ron and Harry were laughing with Fred and George, sitting on the ground in front of the fireplace and looking up at the red-haired twins.

"Harry! Ron!" Hermione called. They didn't hear her. "Harry! RON!" Both boys' head snapped up and caught sight of the two first years. They quickly excused themselves from the twins and fought their way towards them. Trunks and Gohan led them towards a more private area of the dormitory.

"Everything alright?" Ron asked. "I mean, he believed you, right?" Gohan nodded and Ron sighed in relief. "I was scared that if he didn't, he would expel the two of you!"

"Ron, this is Dumbledore we're talking about," Harry pointed out. "He probably believed in aliens before Gohan and Trunks told him."

"Yeah, mate," Ron nodded. "You're probably right."

"Listen," Trunks suddenly interrupted. "Every year, there's a Martial Arts World Tournament held in Japan. And all the world's best fighters gather there. We've missed out a lot of them… but we've been thinking about joining this years'."

"The date is around the next few weeks, from what we've gathered," Gohan said quietly. "We were just wondering…"

"You want to go," Ron said bluntly, nodding. "And leaving us all alone, unprotected…"

"Ron!" Hermione admonished loudly. "They can go if they want to! We're safe here with Dumbledore anyways." She gave him an angry gaze. "Besides, it's not as if their job is to protect you. Harry should get the last say in this."

Ron returned the angry gaze. "I was just speaking out what's in your mind anyways!" Hermione growled.

"I can't believe you-" she started.

"It's okay," Harry said, half-afraid of his best friends fighting again. "Like Hermione said, I'm sure we'll be safe with Dumbledore in our school."

Trunks shrugged. "We haven't exactly really talked about going. We might change our minds. However, if we do leave for the tournament, I don't want you to be left but magic in your heads." Gohan gave him a confused look.

"What do you mean 'just magic in our heads'?" Ron demanded. "It's very useful, mind you!"

Trunks paled as he realized what they thought he meant. "No, I'm sorry!" He rubbed the back of his head in embarrassment. "I didn't mean it that way. I meant that it would be better if you learned something more physical…"

"Physical?" Harry gave him a curious look. "What do you mean by that?"

"Like, if your wand manages to get separated from you, you have nothing to protect yourself with. So my plan is to…"

"You plan to train them in martial arts!" Gohan suddenly exclaimed, his eyes widening.

XXX

End of Chapter.

Okay, so I know this is a pretty short chapter, but the next one should be up… soon. I'm starting a DBZ Naruto crossover (yeah, I've been obsessing about DBZ crossovers.)

Anyways, do any of you know if there are classes on the weekends in Harry Potter? Please review!