One World, Two Hearts.

A Crossover of Inuyasha and Avatar: The Last Airbender.

Katara/Sesshomaru and Toph/OC

Chapter one: Not What It Appears.

Authors note: This is a crossover of Inuyasha and Avatar: Last Airbender. I just want to inform you that I don't like Katara and Toph's age, so it will be changed, and also, Zhao never really died, and Katara and Toph have master their elements. The story rate will change throughout the chapters…so Enjoy ^^

~TTF~

"Aang!" Screamed Katara. Aang was suspended in the air in his active Avatar state. Katara, Sokka, and Toph concern a cross their faces. Aang was unwilling opening the gates to the spirit world. So they thought.

"We got to stop him before the fire nation army gets here." comment Katara. Sokka looked around him, and saw a boulder. The height of it was good enough for him to jump off and grab Aang.

"Toph! Throw me up to the boulder. I got a plan!" holding his boomerang Toph stomp her feet, and Sokka was flying towards the giant rock. Sokka barely got a hold of it, but his grip was tight. He climb up the boulder and was standing on his high feet, ready to jump.

"I hope he knows what he doing?" comment Toph.

"You and me both." Katara, was standing next to Toph ready to catch Aang with her waterbending.

Aang still suspended in the air, his eyes and arrows glowing. Aang had no clue what was going on around him. He didn't know he was causing the gates to the spirit world to open. Instead he was sitting on the volcano with Avatar Roku.

"Aang, there is a journey you must prepare yourself for." Aang looked at the former Avatar. "Avatar Roku, I need to know. How can I fight the Fire Lord, if I don't know all of the elements. Who can I look to, to learn fire bending?" Roku let go of a heavy sigh. Shacking his head, Avatar Roku open his eyes to stare into Aangs, "All will make sense in due time. But there is a greater threat upon you young Avatar. Look within yourself, and you will find the answer that you seek." with that said, Avatar Roku slowly disappeared, only to leave a very confused Aang. "Greater threat?" Aang sat there confused, trying to figure out what his former self was talking about. Closing his eyes, he looked within himself to find any answer he could find.

"Alright, I can do this." Sokka wiggling his butt in the air, preparing himself to jump.

"Look! It's Admiral Zhao!" Katara pointed over the water where Admiral Zhao fire navy ships could be seen.

Sokka looked over to where his sister was pointing to, cursing under his breath he began to jump in hurry to Aang.

Fire balls blasting towards them. Toph flew a wall up from the earth, trying to block any fire balls coming towards them.

"Get twinkle toes, and lets bounce for it." Sokka jumping, but was caught in mid-air by a fire ball. "SOKKA!" Katara was about to run to her injured brother when Zhao landed between her and Sokka. Katara heard Sokka groaning in pain.

"Haha, at last I have capture the Avatar!" Zhao laughed in a triumph stance. Completely ignoring Katara, she bended the water by her side, and caused a splash in Zhao faces, causing him to stumble back. Outraged by the attack, Zhao threw fireballs in Katara's direction. Dodging fireball after fireball, Katara used her water whip as a defensive attack, losing energy. Another fireball barely came in contact, as she dodged, losing a few strains of hair in the process. Crouching, with a knee up, Katara looked behind her, seeing Toph trying to get to her. Looking back at Zhao, Zhao was pulling energy, forming a giant fireball.

"You foolish child, I will end you!" roared Zhao. Before mastering the giant fireball, the earth shook under their feet. Toph finally reaching Katara, still throwing rock after rock at the firebenders.

"Where's twinkle toes? I can't see him?" Katara looked over to where her brother was laying, still clutching his side. She finally looked up to see that Aang was still suspended in the air. The wind was picking up around him, causing a winded tornado. "He's still in the air." replied Katara.

"I don't like the feel of the earth. It's not letting me see right." Toph was now on all fours, trying to keep her balance.

Zhao looked up to see the Avatar. He was about to throw a fireball, when he felt his feet go under him. Looking down, a purplish pink hole in the ground was forming. He tore his eyes to see the earthbender on all fours, and the waterbender looking at the hole in the earth. "What's going on?" he heard the earthbender ask. Watching the two benders for a few seconds till his attention was back at the hole in the ground. It must be the Avatar's doing. looking up at the boy in the sky, he noted how the boy arms were stretched out, and his eyes and arrows are glowing. That's it! He must be opening the gates to the spirit world. Now, this is my chance. Zhao knew if he could gain the power of the spirits, he would be seen as a powerful bender; in fact, he would be seen as Lord for he would be able to take down Fire Lord Ozai. Looking back at the benders a cross from him, and then to the hole that was becoming bigger. He decided that if he was going to defeat the Avatar and the Fire Lord, he must take the power of the spirits. Making up his mind he jump in the hole of the spirits.

"Katara, I can't see Zhao!"

"Because he jump in to the spirit world!" Katara watched how the Admiral looked at Aang and then the gapping hole in the earth that leads to the spirit realm. She watched his expression turn into something of a man who just gained the outmost power. She knew if Zhao got his hands on a spirit, he will gain power, and he will be impossible to defeat.

"We have to go after him." Toph breaking her train of thought. "What about Aang and Sokka?" Toph grabbed Kataras arm, pulling her to the hole. "If we let Zhao get his hands on a spirit, were all done for. I'm sure twinkle toes will get us out." Katara looking at her brother, who was now getting up, and then to Aang; she nodded in agreement. Both girls standing at the edge of the hole. "Lets do this!" comment Toph. Toph kept a death grip on Katara's arm and jump.

Toph arms were wrapped around Katara waist, holding for dear life. Katara holding on to Toph, for fear they would be separated. Katara looked around herself, seeing wonderful, beautiful colors of deep purples, pinks and blues surrounding them both. It felt as though they were drifting. In the far distance, Katara saw Admiral Zhao.

In matter of seconds they were falling fast. Now seeing a clear blue sky, and bright and dark greens. Katara and Toph landed on the rough patch of grass. "This doesn't feel like the spirit world?" Toph said. "I agree, the spirit world where Aang, Sokka and myself were in, was nothing like this. This feels to…real." Katara heard a grunt, and looked over to see Zhao not to far from them, looking around his surroundings. Zhao noticed that the girls followed him, and began to run into the nearby forest.

"Can you stand?" Katara asked Toph.

"Yeah," Toph stood on her feet, stretching her limps "it feels good to feel solid ground under my toes." Turning her head where Zhao took off, she sighed. "I guess were going after him?" Katara shook her head. "I don't think we should." Toph turning her head to Katara, confusing written over her face.

"Why not?"

"I don't think this is the spirit world."

"Where do you think we are then, huh?" Toph crossing her arms over her chest, said it in her sarcastic tone.

"I don't know, but it's not the world of the spirits." Toph was stop from what she was going to say, when both girls heard a child scream, not to far from where they stood.

I hope you enjoy the first chapter. The second chapter will be up shortly. Please R&R..thanks my awesome fans!

~TTF~