(a/n: hello everyone! i hope you enjoy this. i don't own danny phantom or bleach.)

Ch.1: Vanguard

Loud alarms and bells rang in the night, battle cries sounded and pained screams quickly arose.

The Seireitei was under attack.

Rukia and Ichigo rushed towards the sounds of a battle "What's going on?" he asked but Rukia just shrugged "I don't know, all I know is that we're under attack".

They darted around the corner and saw a wall of other Shinigami blocking the path, the leader was shouting "Here it comes!" then a large black and green shape jumped over the blockade, it then skidded to a stop behind Rukia, Ichigo and the other shinigami, they all gaped at what they saw.

Sitting astride a massive black warhorse that had a mane of emerald flames, was a slender woman with long white hair and azure eyes.

She wore black armor and had a quiver of arrows strapped to her back "I must say you're security is very lax" said the woman snidely "All these years of peace had made you very soft"

"Who are you!" demanded Ichigo the woman quirked an eyebrow "oh my, how rude I thought you brutes would've developed manners after all these years but I see that you fools still have a lot to learn" she drew an arrow from her quiver, the arrow head had a glowing green tip.

She drew back the string of her bow "I guess I have to teach you some manners" she released the arrow; it whizzed past Ichigo and embedded itself into the shoulder of one of the shinigami in the group.

The man grabbed his shoulder and crumpled to the ground in pain, the woman grinned and the horse reared back, she rode away calling over her shoulder "Enjoy!".

Ichigo just stared at the fleeing woman in confusion then he looked back and saw the man change. His skin slowly turned green, and he grew larger and larger, large white fangs grew out of his mouth and his eyes turned a ruby color. The shinigami was twice the size of his group and he let out a blood-curdling roar, he then lashed out at his comrades.

The other shinigami began fighting him; Ichigo was going to draw his zanpakuto but Rukia called to him "Ichigo come on!" he turned and saw that Rukia was chasing after the woman.

Ichigo grumbled something then he chased after Rukia.

The two shinigami managed to catch up with the woman on the horse, she was firing more arrows into more shinigami as she rode by, the injured were slowly turning into large hulking creatures who began turning against their comrades.

The woman giggled till she glanced back and saw Ichigo and Rukia pursuing her

"Oh so you decided to join me?" she said sounding bored "Well keep up children" she snapped the reigns on her horse, the horse grumbled and picked up speed. "What the hell?" said Ichigo, he ran faster, the horse rounded a corner "We got her now" said Rukia "That's a dead end" they ran around the corner and they stopped and gasped at what they saw.

There was indeed a dead end but no woman on a warhorse.

Ichigo ran up to the wall and felt it "Solid" he mumbled, he turned to Rukia and said, "How the hell can anyone do that?" "I don't know, this is all new to me" she said quietly.

There was a whinny behind them, the two turned and saw that there were two new people on horses.

Their horses were different from the woman's, one was white and had a mane of black fire, the other had red eyes and had looked like it had recently crawled out of a grave, there were exposed muscle in some places, and in others there were exposed bones.

Sitting astride on the white one was a pale man, who wore a hood and brown clothing; he held a long curved cavalry sword that had an emerald blade.

The other rider was also a man but wore a knights armor, his helmet had the visor up, in his hand he had a metal lance that had a eerie green glow about it, in the other was a green and black shield that bore a crest, a skeletal dragon with a flaming crown floating above its head and the dragon was perched on a green and black spiraling globe.

"Well I must say I'm bored with this rat hole" said the hooded man

"Indeed, the shinigami must have really lowered their standards" agreed the man with the lance.

Ichigo drew his zanpakuto "Who the hell are you people?" he demanded, "Tell me!" the hooded one rolled his eyes "Not to mention the rude manners" "indeed" said his companion.

Ichigo snarled, he rushed at the two, he swung his zanpakuto at man with the hood, the blade should have cleaved him in two.

But it didn't.

The blade just passed through the man and his horse, resulting the blade becoming embedded into the ground.

"What the?" gasped Ichigo "See what did I tell you, rush first then ask questions later" said the one with the lance "I guess you're right"

"Just what the hell are you two doing?" said a new voice.

Everyone turned and saw a large man astride a large green warhorse.

The man had dark shaggy hair, a beard; he wore black robes and had a large double bladed battle-ax, he had a deep scowl on his face "Answer me!" "Well we were just settling a wager" said the knight "We bet that the shinigami hadn't learned any manners since last time, and I won!"

"Good for you" said the man with the ax sarcastically "Now if you two dolts have finished playing, we have a job to do" the sound of a horn echoed through the night "Time to go" said the knight.

The man with the ax and the knight turned and rode away towards the sound, the hooded one just waved "See you around" he turned and he rode after his companions. Ichigo blinked then yelled "Hey get back here!" he chased after the riders. After a minute of running he managed to catch up with the hooded man "get back here you bastards!" the man just glanced over his shoulder "Oh jeez, give up kid you're embarrassing yourself".

Ichigo just grunted and he jumped and he managed to catch on the back of the saddle, the horse continued onwards dragging Ichigo along.

The man punched Ichigo in the face a few times but he wouldn't let go "Let go damn you!" "I got him!" said a familiar voice.

Ichigo glanced to his left and saw the woman from earlier. She had an arrow with a glowing purple tip, she pulled back the bowstring "Hello!" she released the arrow, it whizzed through the air and it pierced the back of his shoulder "And Goodbye!" she smiled and laughed.

Ichigo lost his grip on the saddle and he tumbled to a stop on the ground, he was left to lie on the ground and he saw the intruders riding towards the gate to the human world.

There were six in total. The knight, the hooded man, the female archer, the man with the ax, and there was a man in a white cloak with a large broadsword strapped to his back and the last one was wore black and had twin swords at his sides.

Ichigo saw that the one wearing white was holding a large emerald crown that was on fire, the six riders rode straight to the gate, a swirling green portal appeared in front and the six rode right into it, vanishing one by one. After the last one had disappeared through the portal, it vanished. Ichigo's eyes grew heavy and he slipped into unconsciousness.

Rukia got to the gate and saw Ichigo on the ground with an arrow in his back "Ichigo!" she exclaimed and rushed over to him.

She studied him and to her relief she discovered that he's only unconscious. In a matter of minutes members of the medical squad arrived and moved him to their barracks with the rest of the wounded.

The Head Captain arrived with Byakuya, Unohana and Hitsugaya

"What's the status of Kurosaki?" he asked,

"Stable for the moment" said a medic "But it looks like the arrow was poisoned" "Can you cure him?" asked Rukia.

The medic shrugged "I don't know, I can stabilize him and maybe delay the poison, but to cure it is another thing entirely. I've never seen this type of poison before" he held up the arrow they had carefully extracted, the tip was made of a metal that was a deep shade of purple

"From our analysis, it's made of several different materials not found here or the world of the living. Not even Hueco Mundo has this type of poison" "This is most troublesome" said the Head Captain.

The three captains gave their reports, casualties were few and minimal damage was done, the men who were turned into giant green monsters had reverted to their original selves but they had a slight gap in their memories.

Head Captian Yamamoto sighed, "good, at least there were no deaths" he turned to Rukia

"You had seen the intruders, describe them to me" Rukia described them in detail and when she mentioned seeing a crest the Captain held up a hand and said sternly "Describe this crest to me" She blinked "It was a skeletal dragon with a crown of fire and it was perched on top of a spiral of green and black" the Head Captain sighed heavily "so they have finally returned"

"Who?" asked Captain Hitsugaya

"The Knights of The Abyss" said the Head Captain gravely "It was so long ago, I thought they had died off in the Forest of Solitudes but it seems that they are back and it seems that they are stronger then ever. if they could get through our security like that" "Head Captain!" exclaimed a voice.

Everyone looked and saw it was Chojiro Sasakibe, the lieutenant of squad one he rushed into the barrack and he said between breaths "Sir, the intruders had broken into the vaults, nothing was taken, except for the crown" the Head Captain's eyes opened, he scratched his chin and said "This is very bad. very, very bad".

A few hours later the Head Captain called a meeting with all the captains in his office and he explained who the intruders were "These six intruders were known as the Knights of the Abyss, they served a powerful being called Pariah Dark"

"Where are they from?" asked Captain Hitsugaya

"They are from a nameless dimension where restless spirits live" said the Head Captain "These spirits are called ghosts, they are still anchored to life but they are not truly released from the human plane and they are ruled by a powerful and cruel king called Pariah Dark" "How is it that we have never heard of this?" asked Captain Kuchiki.

The Head Captain shook his head "It is because that world is not in our jurisdiction, not anymore. After a costly war with the Ghost King we made a pact to never set foot in his realm again" "What do we do?" asked Captain Komamura.

The Head Captain lowered his head "We have few options, we cannot attack the Ghost Realm without having another war on our hands. I'm afraid the only thing we can do is to send one of our own to investigate".

All the captains nodded and muttered in agreement "Who do we send?" asked Captain Hitsugaya "Rukia Kuchiki" declared the Head Captain "She has the most experience with the world of the living besides Ichigo, while he recovers she will investigate".

Rukia sat in Urahara's shop in her human form.

After he had explained the mission to her, Urahara handed her some papers and a wallet "The only portal we know of is somewhere in America" he explained, "So to avoid having you miss school, I put you in the foreign exchange program" Rukia opened the wallet, it was full of American money and a fake ID.

"Where will I be sent to?" she asked

"A small town called Amity Park" said Urahara "And for the duration of the mission you will be staying with a family known as the Fentons"

"Is that all?" she asked.

Urahara scratched his chin "Well there is one thing. Be on your guard, the town is really odd,"

"Odd?" "The Science divisions records say that the town has a lot of odd spiritual activity, especially with one spirit I want you to look out for"

"Who?" she asked

"A boy named Danny Phantom" said Urahara.

End of chapter

(a/n: Well what do you think? review)