A/N: Okay, so, this story is based off of my other fanfic, "Worth a Chance" when Tails mentioned that Sonic and Shadow were brothers, Sonic denied it, but Shadow said that he'd 'find out sooner or later.' This is where they find out, basically XD

Shahra, unfortunately, will not make an appearance, even though the first few dialogue did happen in Persia with Shahra present. This is, more or less, set in the Mystic Ruins which is located in Japan.

So, enjoy!

~XxXOoOXxX~

Brotherhood: Lost and Found

By: The Andromeda Rose

Chapter 1: You're My WHAT?!

"Sonic and Shadow are brothers, too!" the kitsune said casually. Sonic in turn glanced at the kitsune with a repulsive look.

"What the? Tails, Shadow and I aren't related. We may look alike, and he may have been modelled after me, but we are definitely not blood-related!"

"Oh, don't go saying that too fast." Shadow wagged his finger, "The fox kit may be right about that."

"What's that supposed to mean?" the cobalt hedgehog tapped his foot waiting for the ebony's response impatiently.

The ebony hedgehog smirked at the cobalt's slight interest and irritation that Shadow didn't directly answer his question, "You'll find out sooner or later." he walked off casually. Sonic stood his ground expecting Shadow to stop, turn around, and make some sort of sarcastic remark. But he didn't. He kept on walking. Walking. That irritated Sonic beyond conceivable thoughts that he walked at such a slow pace just to do just that. Sonic pursed his lips, debating whether or not he wanted to follow him. But that question continued to linger in his mind. What on the beloved Planet Mobius was he talking about? Was he spreading the word that he and Shadow were related? He wanted to put an end to any sort of information that may have been, or will be, given to newspapers and the media.

He ran after him, and caught up to Shadow. He walked beside him keeping at the same here to ebony hedgehog was, "Dude, seriously?" he extended his arms out in an exaggerated manner to get the other's attention, "What kind of stories are you making up?"

"Stories?" he glared at those emerald eyes, "Why would I make up stories if it involves me and you, hedgehog?"

The other changed his expression to that of confused, mocking glare, "The hell? Shadow, explain yourself!"

"I'm surprised you don't already know." he paused, then added, "Didn't mum ever tell you about me?"

"Know what? And not really. She did say something about me having a brother and he died or something."

"You were an experiment too." he stated dryly, "The researchers aboard ARK did some of the same experiments they did on me on you – but not all of them because I had to have–"

"ME? An EXPERIMENT?!" he shouted, a slight echo reverberated on the rocks near them, "What the HELL, Faker?!"

"Shut up!" Shadow leaned into Sonic's face, as if daring him to say another word, "You don't need to yell!"

"Yell? You're trying to claim that I'm an experiment like you aboard ARK!" he exclaimed, clearly offended that Shadow called him an experiment.

"Okay, so you aren't really like me. You were born like a normal hedgehog, but we both share the same mother and father."

" "Our" mother?" he raised two fingers from each hand to mimic the "quotation" signal, "My mother is queen of Mobius. And my father...I don't really know who he is."

"See? That just proves my point. You don't know who your father is because he died before we were born." he hesitated, knowing the next thing he would say would offend the other hedgehog beside him, "And Sonic...the Queen of Mobius kinda is and isn't your mother..."

"Dude. She IS my mother!" he lunged forward intending to rip him to shreds if Shadow hadn't dodged the incoming attack.

"Sonic, calm down. What the heck is wrong with you today?"

"Well, let's see," he counted his fingers naming off the previously mentioned things, "you first come into Tails's workshop for a casual repair for your handgun, then suddenly out of nowhere, Tails makes a comment that we're brothers – and to hell I don't know where he got that from unless you told him without my knowledge at some point or another – then you go ahead and make a comment that what the kit had said is true. So yeah, I'm pretty ticked right now."

"Sonic, let's get back on the topic of our father."

"Fine." he crossed his arms in a defensive manner, forced to proceed by his the ebony hedgehog who continued to eye him waiting for him to recount his past to prove his point, "Yes, my father..did die." Sonic hesitated, realising he never knew anything about his father, and the fact that he never met him, "...he died shortly after my mum found out she was pregnant with me."

"Exactly."

"But that still doesn't change" he wagged a finger as if disciplining his ebony counterpart, "your claim that I was created like you were."

"How was I created then? Do you suppose that I was created like Frankenstein?"

He shrugged supposing he really didn't know how his counterpart was created, "My guess is as good as any others'."

"I was in the same uterus as you. I was born first, and had to be incubated, then transferred to a containment chamber where I stayed until I was strong enough to live without a life support."

"You died?"

"I wouldn't be here if I had, now would I? Like I said, they did some of the same experiments they did on me as they did you, but not all of them because I was weaker and needed a stronger immune strengthener." he pointed to Sonic, "You were kinda weak too, but not as much as I was. I was literally on my deathbed because the my egg didn't really develop well."

Sonic raised an eyebrow at this, "Your egg?"

"The original experiment was to see if it were possible to mix eggs from a female hedgehog." he glanced away, partially embarrassed that he had to explain to female hedgehog's reproductive system to him, "The-the egg was created with artificial DNA, but was infused with Aleena's egg, which had her DNA removed."

Sonic frowned, trying to hide his own embarrassment and red face regarding the subject. He watched Shadow carefully: he seemed sincere enough, but he didn't want to believe a word he said. He somehow felt betrayed, even if this were true... "How do you know so much about this? And where can I verify this information?"

"Well, G.U.N. has information regarding the project."

"Well, let's go then! I'm gonna make sure that what you say isn't true." he set his foot firmly on the ground in a sprinting position, then took off toward Station Square to G.U.N. headquarters, but slowed down shortly after he began running.

"Oh, and Shadow?" he stopped, pausing just long enough to ask his question, "If you are my brother..." he trailed off, unsure of himself now, "why didn't you tell me sooner?"

"I...wasn't sure how you'd react to it." crimson eyes looked away from the emerald ones which seemed to look into his soul. Shadow adjusted his posture into an insecure manner, perhaps without realising it as Sonic had never seen him be like this, "We've been rivals since day one. I just – you didn't seem to want to accept me as even a friend."

"I...yeah. A lotta them were just big misunderstandings that we never forgave each other for."

A/N: Hope you guys liked this! It came as a sudden idea, then spurred itself into a massive new story! XD

And if you read, please review ;)

EDIT: There has been a change to the story's title. It was formerly 'Lost and Found' but I recently changed it to 'Brotherhood: Lost and Found.' I still am not sure if I'll be keeping it as such...if you have any suggestions, it's greatly appreciated!