Effects of Poison

Summary: Something that is almost fatal to Yugi takes Malik, Bakura (and Ryou), Kaiba and the Pharaoh to Hogwarts…They meet the famous Harry Potter and his friends, endure the magic classes and all the while try not to let these wizards know their dark secrets….

AN: Yes, this is another Harry Potter YuGiOh crossover!! I hope you enjoy it. They are two of my fav things!!! I have read a lot of hp ygo Xovers and decided that I should do one too! There is NO YAOI!!! Malik is the good guy, Marik is his yami…you probably don't have to worry about him thou, I don't think he's gunna be in this fic…(or is he?...I don't even know..)

Just to let you guys know:

/ Hikari to Yami/

//Yami to Hikari//

Speaking Japanese

Here's the prologue and first chapter! BTW this is set in the fifth HP book and is after Battle City in YuGiOh. Also for the sake of this story Maliks birthday has changed to August 30th. Sorry if this confuses you YGO fans. Ryou's birthday is still on Sept 2nd. Yugi's is still on June 4th .

Disclaimer: I do not own YuGiOh or Harry Potter. So many things would be different if I did… Certain people would NOT DIE… Wait, that's not the point. The point is I don't own anything except some of the plot of this FanFic.

Prologue

The boy walked slowly to the top of the dune. He appeared to speak softly to himself as someone appeared beside him. The new figure pointed to his left and said "It's that way Yugi". Yugi smiled, it was hard to tell in only the light of the moon but the other figure seemed to smirk. Yugi turned to his left and continued on his way. The second figure vanished. Yugi's hood fell from his head revealing his tri-coloured hair. /It amazes me how good your sense of direction is here Yami/ Yugi thought. Yami's chuckle echoed through Yugi's mind, then abruptly ceased. //Who's that?//

Yugi's eyes squinted, trying to make out the dark figures face. This man wore a black cloak with huge sleeves. A dark hood shielded his face from view as he approached Yugi. A small hissing sound accompanied him. He stopped about 1m away. His head lifted and Yugi gasped, his eyes were blood red.

The hissing sound came closer to Yugi and his eyes widened at the sight of the massive snake slithering towards him. //Yugi, maybe I should…// Yami was about to take over when Yugi's defenses went up and the small boy screamed. The snakes jaws had clamped around his leg and its fangs pierced his skin.

Yami meanwhile had been thrust from his soulroom and was standing wide-eyed beside his now fallen hikari. Yugi's eyes closed as the snake let go of him. His breath became eratic and Yami could no longer hear his thoughts. Yami bent down beside him and shook his shoulder, "Let me take over!! Yugi! Come on…lower your defenses and let me in!!" But the young boy stayed silent and did not move.

The snake slithered back to its master, who smiled, took a step-twisted sideways-and vanished into the night. Words he whispered echoed around the still night, "Well done Nagini" He was unable to see the transparent figure's eyes begin to water and hear his saddened scream "Yugi!!" The pyramid pendant under Yugi's cloak glowed.

The sun began to rise over the sands of Egypt.

~Thousands of miles away (AN: the abridged series rox!)~

Harry Potter woke with a start his scar burning. He sat up slowly, mulling over the vision of the strange boy Voldemort just attacked. He reached for his glasses and put them on. Flicking on the lamp he took out a quill and some parchment, and began a letter:

Dear Professor Dumbledore,

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Chapter 1-Tears don't answer questions

Three days later

The Kaiba Corp helicopter descended to the sand covered land. Inside the CEO frowned. Yugi had never missed a duel against him before. They had arranged the duel two weeks before, to give them both time to prepare. But when the date arrived Kaiba was left standing there for hours waiting. And waiting. And waiting. Yugi Motou and/or Yami-the King of Games, did not show.

Outside as the chopper landed four individuals were showered with sand. The younger two coughed as Seto Kaiba exited the helicopter and it took off into the clear blue sky. One of them stepped forward. He had longish blond hair, tanned skin and he spoke to Kaiba directly, "No one has seen him in three days?" The question was left hanging as another of the group -this time with white hair- stepped forward, "You didn't think to tell us about this earlier did you, Kaiba?" he asked his eyes narrowing. The first boy put his had on the second's shoulder, "Bakura. Give Ryou his body back"

Bakura frowned slightly but did what he was asked. "Thanks Malik" Ryou said as Bakura appeared in spirit form beside him. Raising an eyebrow at Kaiba, Bakura stated folding his arms across his chest "Well?"

Kaiba sighed; right now he wished he never admitted he could see the Pharaoh and the Tomb Robber. They just caused too much trouble. And so Kaiba recounted his tale about school one day ago.

FLASHBACK

Kaiba wandered up to the group of his arch rivals friends. Joey eyed him eerily, "What do you want Kaiba?" he asked a tone of annoyance in his voice. Kaiba's eye twitched but he ignored it. He surveyed the group. Yugi was not there, "Have you seen Yugi?" he asked. No one answered. "He was meant to duel me yesterday but he did not turn up" The CEO said. More silence reigned. Joey glanced at Tea and she in turn glanced at Tristan then back at him.

"Not for two days" Joey whispered. Kaiba raised an eyebrow, "What?!?"

"We haven't seen Yugi for two days" Joey repeated looking the elder Kaiba in the eye.

END FLASHBACK

"Where should we start look?" Ishizu asked. Ryou shook the millennium ring around his neck. The Pharaoh was probably too far away for him to located him with it. "If only we could…" he whispered to himself, then stared at the ring as it began to glow, "What?!?" Bakura asked as he had taken over. The ring pointed to his right. He frowned and turned in that direction taking a step forward. The others stared at him. The ring glowed brighter and tugged him forward. Soon he was running, the others following slightly confused. Of course Seto was not running-he was just walking very fast.

Their hoods of their travelling cloaks shielded them from the heat of the midday sun. They had slowed to a walk. No one spoke as they followed to Tomb Robber over the next dune.

~hours later~

Bakura stopped. /Bakura?/Ryou asked from his soulroom. //I thought I saw something…// he replied. Having not been looking ahead of him, Malik ran into Bakura sending them both forward in the sand. "Look where you're going next time Ishtar!" Bakura yelled, pushing himself up. Malik rubbed the back of his head while sitting up, "Did you see something?" The rest of the group had stopped. Bakura squinted to his left, then pointed out with a cry, "Pharaoh!!" Malik scrambled to his feet and ran after the Tomb Robber. Ryou appeared running next to his yami. Kaiba, Ishizu and Odion stared after them for a second then followed.

~0~

The Pharaoh was kneeling on the ground his face buried in his hands when he heard a shout behind him. "Pharaoh!!" He raised his head and turned to see a group running towards him. Recognizing them as his friends he let out a strangled cry and pushed himself to his feet. Tears ran thickly down his cheeks. The group stopped seeing Yugi lying on the ground his eyes closed.

Ryou stepped forward glancing from Yami to Yugi then back to Yami, "Yami, what?-" He was cut off as Yami threw his arms around his neck and buried his face on his shoulder. The Pharaoh cried. Ryou gently patted his back, "It's okay Yami…" he said looking over at his own Yami for help. Together Bakura and Malik managed to pry the Pharaoh off Ryou. Kaiba folded his arms as Yami brushed his tears away, "What happened?"he asked getting straight to the point. Ryou and Ishizu glanced at him, but he just rolled his eyes. "Tears don't answer questions Yami"Bakura pointed out.

"My Pharaoh.." Ishizu said, "Might I ask what is wrong?" Yami glanced at her then his eyes fell to his hikari on the ground. The Pharaoh was silent for a moment and then his spoke, "He won't wake up"

"Can't you just take over?" Ryou asked. Yami shook his head, "He's blocking me" he stated. Bakura raised an eyebrow, "Can you get into your soulroom?" Again Yami shook his head. "What happened?!?" Kaiba repeated getting impatient.

"It was dark" Yami started, "We were coming to see Malik..." At this Malik frowned, "You never-" Ishizu glared at him, "Don't interrupt him Malik!" she whispered. "There was…" Yami continued, "a strange man. He wore a dark cloak. His face-" Yami shuddered, "A snake. That's what he reminds me of. And for a good reason. He had one with him" Kaiba raised an eyebrow.

"it came out of nowhere and before I knew it, Yugi pushed me out!!" Yami dropped his gaze to his feet. He spoke the next words with regret, "I wasn't quick enough. The snake bit Yugi" After hearing this Malik and Ishizu dropped down on the ground next to the Pharaoh's hikari. She placed a hand on his forehead, "He has a fever. Malik pick him up, we'll go home and see what we can do" Malik obliged, lifting Yugi and getting to his feet. Yami muttered a thank you to Ishizu and she smiled. They started on the long journey home.

Little did they know they would never get there…

~1 hour later~

An elderly man appeared out of thin air with a crack. The group stopped. Yami gripped Maliks shoulder. Bakura sent the Pharaoh a look that said, is this the guy? Yami shook his head. This man was definitely not the man with the snake, this guy was too old. The man had a long grey beard and surveyed the group from behind his half moon spectacles. Upon seeing Yugi in Maliks arms he stepped forward and grabbed Maliks arm. Ryou went back into his soulroom as Bakura and Kaiba jumped forward grabbing the stranger. The stranger twisted in their grasp and disappeared with a crack. Only two people were left standing in the heat of the setting Egyptian sun.

Ishizu grasped Odion's hand, her Millennium necklace glowed for a second and her eyes closed. When they opened she smiled, "Our brother will return"

AN: Over 1,500 words! You happy? Long enough for you? So… what did you think?? Haha. Sorry if Kaiba was a little OOC. He only very slightly believes in magic at the moment. But that will soon change….

Were the other characters in character? As to why Yugi and Yami were going to see Malik… you will find out in a later chapter. Also a note on the spirits; when in spirit form they can only be seen by other item bearers (in this story). In shadow games they can separate from their hosts and become corporal beings. Ishizu still has the Millennium necklace just because, okay? And all the item bearers and Kaiba can speak, read and write Ancient Egyptian…

The next chapter will be a little longer. I will update ASAP.

Please R&R!