AN: Ok… here's the time frame. This is the episode right before House was shot in season two. I would have started from season three (I have heard its great) but I refuse to watch it as I missed the first half of the season. As for the Harry Potter cross-over this is about 5 years after he killed Voldemort. I'll have a better estimate later in the story. Ok side not please check this story out- Harry Potter and the exiled slayer I tried leaving the link but as the seven people who have read this story can attest it didn't show… so check out my fav stories its like ten down. If you like any of my stories you are def goin to like this one… It is totally cool but the author hasn't updated in like two months so leave a compelling review like. 'Start writing or else!'

Disclaimer: I do not own the rights to Harry Potter or House M.D.

Chapter One

Break Down

Princeton Plainsboro Teaching Hospital was as busy as ever. The clinic was over run with walk ins as it was every Saturday. The OR was also packed. Gun shot wounds, car accidents, heart attacks, yep just like any other day. There were a few secluded spots scattered around the vast hospital, mostly offices and break rooms. In one such room a weary doctor inserted four quarters and then pressed a button representing his desired coffee. He really only had two choices. Coffee or decaf… no way in hell was a non-caffeinated beverage coming anywhere nears his lips. As the machine spluttered to life and scolding hot liquid began to pour into his overused styrofoam cup, he turned his wrist to check the time. He had just beaten his personal best. Another ten minutes and that would make twenty-six hours. More than a day of stitching wounds, inserting valves, and explaining why daddy wouldn't be coming home. He hated that the most. The blood and guts… no big deal, but throw a teary eyed five year old at him and you might as well of shoved a chunk of Kryptonite up Super-Man's…

"Damn!" The doctor hissed in pain as his trusty cup betrayed him and cracked. The scolding hot drink burned his hand as he scurried to find an empty spot on the counter to place it least he either spill it or lose his hand.

Beep! Beep!

He shut his eyes tight before giving up on his drink all together. He grabbed his pager off his belt.

-OR STAT-

Sighing he began to rush his way out of the break room. As hurried down the hall he began to see dark spots clouding his vision. He shrugged it off as the effect from the harsh hallway lights in comparison to the dull ones of the break room. Just as he reached the elevator a powerful wave of nausea came over him. The other doctors and patients waiting for the lift gave him a suspicious look. Unable to control himself he vomited onto the hospital floor.

"Damn it!" One of the patients shouted as his shoes where prayed with some of the sickness

Desperately he tried to catch his breath as a thick darkness began to surround him. He only had enough energy for one last grunt before the darkness claimed him and he collapsed to the floor unconscious. The unit secretary for the floor immediately paged for help.

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Doctor Gregory House nodded his head slightly to the upbeat tune of Nina Simone which blared though his speakers. His iPod sitting snugly in its perch between the two high quality speakers. The soft thud of a slightly over sized tennis ball hitting the glass wall across from him kept with the rhythm of the music. Just as he re-launched the round projectile with his cane the front door opened.

"Owe! What the hell!?" Wilson, the resident oncologist exclaimed as he rubbed the spot on his forehead where the ball had hit.

"Heads up!" House said in warning. Wilson glared. "Oops, too late huh!? See this is why I gave golf up! I can only yell 'FOUR' after the balls done its damage!" He yelled over the music as he strained to reach down from his comfortable reclined position in his chair, feet on desk, to grab the ball which had made its way back across the room to him. Wilson gave an unamused smile and took a seat opposite House, turning off the blaring music as he did so.

"Listen, House I'm not sure if you heard-"

"Uh oh." House interrupted.

"Uh oh?" Wilson asked.

"You're not lecturing me, which means you have a favor to ask and I'm not goin' to like it." House frowned thoughtfully as he twirled his cane with one hand and tossed the ball up and down with the other. Out of the corner of his eye he saw a manila folder poking out from Wilson's lab coat. "A patient huh? What zebra do you have for me today."

Wilson sighed and pulled the folder from his coat, opening it. As he skimmed over the words he already knew by heart he explained aloud to House. "Twenty-five year old male, passed out at work after becoming suddenly ill-"

"Oh I know this one!" House interrupted waving his hand rapidly in the air.

Wilson glared at House. "I haven't even finished the symptoms." House rolled his eyes as he popped out a vicodin from his prescription bottle.

"Don't you know!?" He asked rhetorically. "It's all the gossip at the water fountain!" Sighing House hoped that he could make one last ditch effort not to take on the case. " Twenty-eight year old doctor," he stressed the word while looking pointedly at Wilson, "passes out after puking on Mr. Dickerson's shoes. It took me a while to work out what he has, but then it hit me. Exhaustion! He was on call for over a day- speed freak- that's bound to play havoc on the…" He gestured to his body, "on this stuff."

Wilson gave an exasperated sigh. "The nausea?" He asked. House's eyes narrowed.

"Have you ever had the break room coffee!? The man's lucky to be alive!" Wilson smiled.

"And the tumor in his brain?" House paused his entire body taking on a new pose.

"You checked for a tumor because he had the stomach flu?"

"No. We gave a full body scan at his request…" Houses eyes narrowed in suspicion at someone wanting tests. "That's when we found the tumor." Wilson explained.

"So? You are the Oncologist. Recommend a good neurosurgeon." House pointed out.

"It's not cancer. I don't know what this is." Wilson's frustration at not being able to help a friend and colleague leaked through into the tone of his voice. House frowned.

"You're friends with him?" Wilson nodded. "You're too close. Give it to Jacobs." House suggested in a placating voice. Wilson shook his head, and reached into the folder to withdraw a MRI scan. With a slightly curious expression, House watched Wilson place the scan on his light board. As the black scan became suddenly illuminated, House couldn't help but gape at the scan. It was completely normal except a small 'tumor' no bigger than a pencil eraser in the exact shape of a lighting bolt.

"That's no tumor. It's not a lesion either." House stated. Wilson sighed not turning from the scan.

"You'll take the case."

"I'll be damned if Jacobs gets it." House stated quietly still staring at the strange growth. Wilson sighed in relief. House sprung up from his seat with a slight wince as he leaned on his cane. As he made his way to the conference room he snatched the file from Wilson.

House looked at the serene faces of Dr. Cameron and Dr. Foreman as they power napped. The doctors were sitting opposite each other but were mirroring each other. Both had their heads slumped on top of a medical journal and both were drooling slightly. They had had a pretty heavy case load the last few weeks. House turned to Wilson who was looking on with an amused grin.

"Aren't they precious!?" House asked in a staged whisper over his shoulder. "DO I HAVE TO DO ALL THE WORK AROUND HERE?" The sleeping doctors jumped out of their sleep. Both were slightly startled, but Foreman was awake enough to reply.

"It would be a nice change. You did punch out right on time yesterday leaving us to administer the treatment and finish the paper work." Foreman spoke mildly but his annoyance was clear. House twirled his cane from the handle slinging it on top of his right shoulder. He stroked his chin in clearly thoughtful expression.

"You're right." He finally sighed. "This time you solve the case and I'll do the paper work."

"We have a case?" Cameron asked perking up as she made her way to the corner of the room to make some coffee.

"I'd say so. You'll have your work cut out for you this time." Wilson put in. House fake glared at his friend.

"Ye of little faith, why don't you go hit on the new nurse. Oh, and while you're down their tell the prodigal son to finish his clinic hours and get up here."

Wilson smirked as he exited the room. "I'll tell Chase that he can finish your hours later."

House smiled toothily. "Thanks Jimmy! So on to this freak of nature…" House limped over to the white board and began writing the symptoms.

Fainting

Nausea/ vomiting

Weird 'lightning' tumor

Cameron and Foreman exchanged a questioning glance.

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Images flashed before his eyes. Some were of moments he treasured others he'd rather not remember at all.

He was running to someone. He knew he had to get to them. He couldn't fail. It was too important. No one would be taken from him again. A piercing scream echoed through the night before a green light lit up the dark sky.

Harry Potter sprung awake gasping for breath. His arm twitched in pain as he pulled against the I.V. in his arm. He raked him brain trying to remember what had happened. Was he at St. Mungos? Did he kill Voldemort? Where was Hermione? And then it all caught up with him. Like jumping into ice water, the memories rushed back at him with the speed of a bullet. He had failed.

Dr. Allison Cameron watched their patient jerk in his sleep. She checked the monitor to find that his stats were fine. He must be dreaming. Suddenly his animated green eyes sprung open as he gasped for breath. She could see fear and uncertainty fill them before a calm storm of depression and pain settle in his green depths. The amount of pain she saw made her heart rise up in her throat and her breath quicken. Steadying herself she walked into the room file in hand.

"Dr. Potter?" Her voice seemed to break him from his revelry. His intense eyes focused on her concerned gaze. It was like a battle of wills. Her fight to help and his to surrender to the pain.

"Yes…" He looked towards her chest, "Dr. Cameron? The test results are in?" Harry asked calmly.

"Yes… we found a abnormal growth in your head. We're not sure what it is exactly, but were hopeful that we'll….you were expecting this weren't you?" She asked recognizing the look in his eyes.

"Not exactly. I knew something was wrong." She nodded and then held in a gasp as she noticed for the first time a lightning bolt scar hiding behind his forehead. Self-consciously Dr. Potter readjusted his thick black hair to cover the disfiguration.

This was definitely going to be a strange case.

AN: I won't be able to update for a while, but I am doing research for this and other stories so just check the alert button when you review and no problemo. PS don't forget to check out the story I mentioned in the pre-story ANs. Kay sees yas laters.