Disclaimer - See chapter 1

Author's Note – Another chapter edited! I intend to reveal why Mark faked his death slowly over the next few chapters. There may be a few Lost style flashbacks, but I promise this isn't a crossover. It's just the best way for this story to work. Please keep the reviews coming - I love reading your thoughts, be it encouraging or criticising.

"Owen Miller, age thirty two. Complaining of abdominal pain. Fainted in the clinic this morning." Dr House read off from the file in front of him. He looked across at the three doctors sat in front of him. "So? What could it be?" He prompted.

"This is a waste of our time. Surely a doctor on clinic duty could have sorted this one. Why did it need to come up to diagnostics?" Dr Foreman shared Cameron's dismissive attitude towards the case.

"He needs to be diagnosed. That's what we do at diagnostics. You think it's easy? Tell us what he has."

"It could be anything." Foreman was prompted to continue by a look from House that implied he knew Foreman couldn't diagnose it, "Most likely indigestion of perhaps fatigue." Foreman jumped to a similar conclusion as Cameron had not long before.

"Unlikely either of them would cause both symptoms." House declined the diagnosis.

"Ok then it could be both of them. Whatever it is it's something minor." Foreman was beginning to get annoyed, "Why are we doing this case?"

"Because Dr Cuddy gave it me. It means I get my wages at the end of the month. Ten bucks says you're wrong. If you're right it'll be a nice little boost to your pay packet."

"You're being childish."

"That wasn't a no."

Foreman sighed. He knew better than to take a bet with House but his competitive streak prevented him from declining. One day he would prove House wrong. Maybe today was that day. "OK," he accepted.

House smiled. It shouldn't be hard to prove him wrong. "Dr Chase. Just in case Dr Foreman here is incorrect, what do you suggest it is?"

"The syncope could have been caused by some sort of neurological disorder or just the pain," he suggested. He'd used the correct medical term in an attempt to impress. House had already put Foreman down today and Cameron was very quiet. Maybe a good performance would make him stand out from the crowd and earn him a few brownie points, or a bonus.

"What else?"

"Gastroenteritis, appendicitis, inflammatory bowel disease, possibly MI," Chase reeled them off.

"Good. Dr Cameron?" Allison looked up suddenly. She looked at House with a confused expression on her face that made it obvious to him that she hadn't been listening. "Differential diagnosis. Kind of important."

"Oh," Cameron felt herself beginning to blush. Her mind had been trying hard to make sense of what had just happened and had totally disregarded the situation around her. She turned to the white board where House had been writing Chase's ideas. Foreman's suggestion was in brackets at the top. "It could be caused by drugs. Both addiction and withdrawal could cause the symptoms." House added it to the list before adding sickle cell and typhoid to the bottom.

"OK, Dr Chase organise a physical. Cameron get me an MRI and a history, see if we can cross of drugs or intestinal problems. Foreman you can help her and then sort out some urine samples for testing."

Allison was preparing for the MRI alone. Dr Foreman had decided to visit the pharmacy before coming up to help her out so that he could get some antacids which he could use to treat what he thought was a simple case. Cameron couldn't complain. She savoured the peace and the opportunity to think things over. She was finally coming to terms with the fact that her husband was alive. Right now she only had two clear thoughts in her head - that she hated him and that this needed to be kept secret. Hopefully she could come to some sort of arrangement with him about a divorce quietly without anybody knowing who he really was and he could disappear again. Of course she'd want him to pay her back for six years of pain and guilt first.

Eric Foreman entered the room, closely followed by a nurse pushing a wheelchair. Its occupant watched Cameron carefully as they lifted him into place for his MRI. It was only then that Foreman introduced himself and Cameron before explaining what the test would do. "…Dr Cameron will stay here outside the chamber to keep a close eye on your vitals. If anything goes wring she'll be able to pull you out and try her best to save you," Cameron tried her best to ignore the part of her that denied this. To leave a patient to die in front of a colleague would just be stupid. "I'll be in the next room monitoring what comes through form the test. You'll also be able to talk to me and I'll be able to reply through an intercom system." Foreman explained. "Don't worry, you're in good hands."

"I'm sure Dr Holloway will keep a good watch," Mark smiled. Allison's stomach tightened. Would he reveal her secret there and then?

"It's Dr Cameron," Foreman corrected.

"Sorry, my mistake," he glanced at Cameron who gave him an icy glare which Foreman missed. He was preoccupied with a thought.

"How's your memory been recently Mr Miller?" he asked.

Mark looked shocked. "Oh…OK I guess."

"You agree with Chase? That it could be neurological?" Cameron questioned.

"It's worth keeping an eye on." Foreman left to prepare the MRI, which gave Allison an opportunity to turn on Mark.

"Holloway!" she hissed. "Don't call me that, especially in front of colleagues."

"What's the matter? Ashamed of your husband now are you?"

"You are not my husband. They don't know I was ever married and they don't need to. You are just another patient." Cameron stressed the final sentence to emphasise her point, while trying to hide the fact that she was arguing with him form Foreman, who could clearly see her from the adjoining room. Their conversation was cut short before Allison could get Mark to agree by Foreman signalling to her to begin the MRI.

As Mark slid slowly into the chamber Dr Cameron turned towards the heart rate monitor. It read out normal results, but she wasn't paying attention. She was trying to hide her face from Foreman, a few frustrated tears slowly rolling down her cheeks. She was sick with fear at the prospect of having to reveal his true identity. "How did this happen?" she thought to herself. "Why is he back?"