This is my second crossover story, and it's quite exciting! As always, I will try to stay true to the actual personalities of the characters I am using. Credit for the characters and most of the setting goes to Disney and Sega, respectively. Well, enjoy the story!

Chapter 1: The Beginning

Eggman:

He has been called many things in his time: traitor; monster; villain; sick; twisted; and, for a limited time, friend. His story started long ago, with his discovery of the chaos emeralds. It was then that he was called 'friend', although the word seemed very foreign to him now. He had taken in the poor, lonely, injured animal and helped to restore it to its previous condition. The animal was never restored to quite the same level. In fact, it had surpassed that level long ago.

Slowly, its speed had increased; raising it to levels unheard of before. But it didn't stop there. One fateful night, it dangerously exceeded his expectations. From then on, fate started its cruelly ironic joke on him. His conscience was thrown into a prison in the back of his mind, kept in check by the evil that his body had absorbed. Half of all the evil in the world had been bestowed upon him. It ruined his life and reputation. It was then that he became the monster that everyone had learned to love to hate so much. He became the Eggman.

Through some twisted joke, he became everything he wasn't. He had been converted entirely from a hero to a terrible villain, a repulsive reject that everyone on Mobius learned to hate with every fiber of their being. If the accident had not happened, all of the evil in the world would have been contained in the seven chaos emeralds. He had once been a world recognized scientist, said to be the Da Vinci of his age. Einstein had nothing on him.

Now he was hated by everyone, and in return, he enslaved people in a suit of cursed metal. Through some cruel twist of fate, it was then that he had created his most advanced and revolutionary inventions, all to dominate the world. He didn't just want to rule the world, though, he wanted the world to be his slave; to be completely destroyed. To him, the world was his to do what he willed.

It was his world. They would be his servants, his army, his empire. He had started by trying to take over Christmas Island, basing himself near a little area named by the local Mobians as Green Hill Zone. That was where it started. The animal that he had helped, that he had spent so much time nurturing, had turned against him. He stood up for the animals he was enslaving. It felt as if his own son had stabbed him through the heart, and since it was already beaten and cold, it gave up the fight and broke.

Losing all hope, Kintobor watched the nightmares unfold with ever growing despair; knowing the condition that the world was in was his fault. He had failed the world, and it would not forgive him. It would not stop until the body that his soul was trapped in was destroyed. It was then that Dr. Ovi Kintobor had given up the fight. From then on, he hung like some unwanted criminal in shackles, in the back of his own cranium.

Since the events in Generations, Kintobor had completely given up hope. No one even knew that he existed anymore. Not even Sonic, the animal he had cared for, could keep his hope up for his salvation. In fact, Sonic had been so disgusted by his transformation that HE was the one who had given his beaten, bloated body the name of Eggman. The perfect name for his corpse. Not once had Sonic called him Kintobor since his transformation.

So Kintobor let himself go, to melt and fuse with his evil counterpart. He had to deal with so many deaths over his head that ceasing to exist didn't bother him too much anymore anyway. So when the devil he had become came to lull him to his side like he did every day, Kintobor had not only agreed to side with him, but to BE him. At that same time, Sonic had come to stop Eggman from another one of his nefarious plans to take over the world.

Sonic broke the machine harnessing energy from the chaos emeralds just as Kintobor had agreed to cease to exist. The explosion was small, but so powerful that it ripped open the dimensional barrier, as most chaos explosions do. This explosion was not like other blasts, though, it had an after effect. A wormhole opened up, releasing an icy blast. Since Kintobor was in the process of fusing with his evil entity, he acted as a shield to him; absorbing the blast. Kintobor was frozen just at the "break of being", stuck in existence.

Kintobor's conscience was frozen in existence, leaving Robotnik untouched. Sonic was not so lucky, since only one soul resided in him. His mind was frozen over, creating a pure white streak like one that Shadow has on his top spike. He fell in a heap to the floor. The wormhole grew larger, pulling both Sonic and Eggman into it. Sonic's limp body simply sailed in, while Eggman held on to his control panel, screaming for Orbot and Cubot to help him. The wormhole proved stronger in the end, though, and ripped Eggman away from its control panel and into its event horizon; pulling him screaming in.

Kristoff:

At the same time, a powerful wormhole opened up just behind Kristoff, pulling him toward another world that immediately quickened both his metabolism and mind, effectively making him as fast as Tails or Knuckles. Even with his newly gained speed, however, Kristoff's running was in vain. The wormhole was slowly pulling him in. "Help! Somebody help!" It was at that moment that Olaf had popped his head around the corner to find to discover Kristoff running for his life as a portal of some kind pulled him in.

Olaf gasped "run forward Kristoff, not backward, the portal is behind you!" Kristoff, on the other hand, only saw the likelihood of being pulled in increase with the appearance of the snowman who thought he was moonwalking (or moonrunning) into the portal. "Does it LOOK like I want to fall in, Olaf?!" The aforementioned snowman took serious consideration of the human's predicament.

After failing to come up with a valid conclusion, a confused Olaf hesitantly said "yes?" Kristoff could do nothing but stare in exasperation as the wormhole pulled him closer. Kristoff fell, digging his fingers into the dirt to prevent from falling in. "Olaf, go find help!"

"Okay, I'll be right, back?" Olaf turned around and started off to look for someone, but instead of walking forward, as he had planned, the poor snowman was tossed into Kristoff's face. That was the last straw for Kristoff's struggle, suddenly both of them were sucked protesting into the screaming wormhole; and, unbeknownst to them, transported to Mobius.

Eggman hit the ground with a thud. Dazed, he slowly raised himself to his feet. Fighting Sonic for so long had its advantages, namely being able to survive falls from great heights even though his mustache couldn't. Or, in Eggman's case, being spit like a rag doll out of a wormhole. The egg shaped man stretched his aching back, hearing several satisfactory pops in his so doing.

He rubbed his head, which hurt like Sonic had punched him across his face, and grunted out "ugh… My head. What happened? Where am I?" Eggman looked around at the seemingly endless evergreen forest. "Where is this place? Orbot!.. Cubot? Where did I go?" Right in front of him was a rather tall hill, more like a mountain. Eggman turned around to see a rather large castle surrounded by a VERY large city-state in the distance. He contemplated this and guessed he had probably been sent back in time.

This looked to be at least sometime during the Middle Ages. The perfect time to conquer the earth, as there were very few nations that were technologically advanced. On the contrary, they seemed to fear it, and label it as witchcraft. He needed to find Sonic, and either persuade him to go back to his own time by himself or kill him. But how to find one blue hedgehog in a world where even cars didn't exist?

Then it struck him, the only way to find him is the way he finds me. A perfect plan, but he needed a robot army first. Then before that he needed to collect the resources needed to build them. Looks like I'll be building my way to victory the old fashioned way, he thought. Eggman grabbed a rather large, sharp triangular rock and a long branch. Then he ripped a strip from the bottom of his red lab coat and tied the rock to the stick with it.

Eggman ran toward the mountain. After an impressively long run, he cleared a large square of dirt from plants and leaves until it was bare earth, then began to draw out his plans for world domination on the muddy ground. When he had finished, he looked around for tree saplings, cutting them down when he found them with his makeshift spear-axe. It would take time, but the fruits were ripe for the picking in Eggman's eyes.

Anna:

Anna walked up to another guard "excuse me, have you seen Olaf anywhere by any chance?"

"I'm sorry your highness, but I have not seen the snowman since this morning." It wasn't like Olaf to disappear for more than half the day, and it was starting to worry her. She was about to start asking for Kristoff, too, because he had been gone for very nearly an entire day. Anna had not seen him once, and he usually came to at least visit her at least once before he left to cut more ice.

To tell the truth, Anna had been hoping he would come because she needed lessons on how to deal with ice. Elsa had been very stressed this week due to what had happened only two days earlier. Everything she touched froze over, whether it was touched with skin or glove. Maybe they went out to do boy stuff? It was highly unlikely, Anna had never seen them together long before they started bickering. They loved to disagree about winter, even if the only reason was to disagree. Snowmen and icemen were fine together as long as no one mentioned winter.

They didn't fight, or argue too much. Anna just wondered if Kristoff could handle someone like Olaf when he wasn't preoccupied with something else. Maybe they did go off somewhere, after all, Kristoff does seem to get along with Olaf better than me, they are winter people after all. They might have liked to bicker, but the amount and intensity paled in comparison to the amount and intensity that Anna and Kristoff argued. Love could be very confusing sometimes.

Anna was just about to give up when she found a blue creature laying on the ground. Curious, one of Anna's many faults, she snuck up to it. It turned out that she didn't need to. As soon as she got close enough, Anna discovered something very alarming. The creature had six spikes on its head made up of small blue quills. The top center one had a white strip. Anna bent down to touch it, and found the white stripe alarmingly cold to the touch. It was ice cold.

She picked it up gently, the creature near weightless, and ran toward the general direction of Kristoff's family. She flew around trees and over bushes, pigtails flopping crazily. She hit many small shrubs and low branches at her speed, almost dropping the poor thing twice. When she finally reached the clearing she was a panting, sweaty mess. She collapsed onto her knees on the ground; the creature carefully placed on her thighs as she held him close, trying to at least share her body heat. Immediately almost all of the trolls unrolled, and a swarm of voices questioned her at a rapid fire pace "It's the princess? What are you here for? What is that thing you're holding? Where was it found? Why did you bring it here?"

She called out for the elder, "please help! Someone bring the shaman!" The questions continued to circle until the eldest troll, Pabbie, rolled out into the center with Anna. Seeing the direness of the situation, he got right to work. He was right to the point, but his voice was not harsh or rude "What happened? This did not have anything to do with the queen did it?"

"I just found it this way, and to my current knowledge, this has nothing to do with my sister."

Pabbie nodded "Okay, hold him out." He pressed his hand over the forehead of the creature, and gently rubbed his glowing hand in small circles over the ice. His hand glowed a soft blue until he had removed it from its head. The creature squirmed for a few seconds before opening his eyes. Anna gasped, looking into emerald eyes that seemed to glow with life. They were beautiful.

The creature rubbed its head "Ugh… What happened?" Anna screamed and recoiled, dropping him to the floor. "Ouch! Hey, what was that for?!" The creature stopped glaring at Anna for a few seconds to take in its surroundings. "Where am I?" Suddenly the creature turned to face Pabbie, who looked only too much like a leader to be missed. To everyone's surprise, though, it was very polite when it asked "excuse me, are you the leader here?" Pabbie nodded, not knowing what would happen.

"Do you happen to know where I am?"

Pabbie looked slightly confused with the creature as he asked "You don't know? Arandelle is fairly well known around here. Are you from here?"

The creature straightened a bit, and his quills rose slightly. They were now a bright cerulean blue. "Arandelle, huh? So this is a storybook or something? As you can probably guess I might not even be from this world."

Anna took this chance to speak up "from another world? What do you mean storybook?"

"I'm either not from this world or not from this time. From where I came from, I have had to save storybooks from having the wrong endings; like evil winning. Wait! That reminds me! If any of you see a man shaped like an egg with a very big mustache, try to catch him for me. He's also from my world, and he could do a lot of harm in this world if left alone long enough. He has an army of robots."

"A hero who saves stories? What are robots?"

"Do you have knights in this world?"

"Yes."

"Do you know what golems are?"

"Yes?"

"Well, they are golems made of lightning and armor that can do almost anything. Even become real people, although you can easily tell if they aren't the actual person most of the time. They are very durable and anything short of a cannon won't stop just one of them."

"Just one?"

"They can be tough when they want to. Are you a queen or princess? You have that air about you, kinda."

"Yes. What that supposed to be an insult?"

"Nah, I always act like this. I suggest sending search parties to look for him while he's still unarmed. If he builds up an army; it's gonna take some time to catch him, and I don't want us messing with your timeline any longer than we have to."

Alright… By the way, d-do you have a name?"

The creature beamed Anna with a large smirk and said "yeah; I'm Sonic, Sonic the Hedgehog."