A/N: Ok, guys, tried to do better at the grammar but undoubtedly failed, I'm sure. So as usual WARNING for bad spelling and grammar. Anyway. This is my first Sherlock/Cabin Pressure story and have only been listening to it for a few days so please forgive any mistakes or OOC moments. Hope you like it. Previously posted on DeviantART.

CHAPTER ONE

"I still don't understand while we're taking this case Sherlock. You said yourself it wasn't even a seven and you don't leave the flat for anything less than an eight, so what changed?"

Another observing Sherlock Homes wouldn't see anything but the usual casual detachedness of the world's only consulting detective. John Watson wasn't just anyone - he saw the small twitch in Sherlock's haw that usually meant only one thing.

"Is this about Mycroft?"

"No. - I'm just intrigued."

John frowned; he knew a lie when he heard on at least where flat mate was concerned. "Intrigued? Really hmmm. - A man dies an hour after getting off a chartered flight from Cork to York…." John smirked at the poeticizes of it all. "…there was no one on the flight but him and the crew. Seems pretty obvious to me…."

"That's because…"

"I know, I'm an idiot." John rolled his eyes.

Sherlock cast him friend a sideways glance. "I was going to not in possession of all the facts."

"Facts? - What facts." Feeling a little embarrassed at jumping to the wrong conclusion.

Sherlock did speak. He just turned back to typing at his mobile.

"Lestrade says the police have already looked at the wife and business contact and their clean. So you think someone on the flight…."

"No!" Sherlock snapped a little too quickly, causing John brows to shoot to his hair line. "I - I mean we need to gather more date. That's why I'm taking the case."

"the case that's intriguing even though it's only a five and that only two hours ago you called boring."

Sherlock shrugged. "Yes."

"I see." though he clearly didn't/

Two hours ago Lestrade had called him asking for help with a puzzling case involving a business man from Cork, who'd died an hour after land in York. They had no cause of death, no suspects yet Sherlock had refusing to help day it was a dull case that was worthy his time five minutes later he'd walked into the living room fully dressed and declared they were going to Cork to solve the murder of J. McAvoy.

~ SHERLOCK/CABIN PRESSURE ~

The flight crew of MJN sat in the cabin running though the pre-flight cheeks while playing one of the word game that kept them from being bored on flights. After all, flying a plane wasn't as exciting as you would think.

Suddenly the door flew open as Arthur rushed in, his face glowing with excitement. Martin and Douglas exchanged looks.

"Arthur?" Martin frowned. "Why are you so chipper this morning?"

"As opposed to your usual miserable daily mood." Douglas said sarcastically.

Martin laughed.

"do you know who we're flying today?" Arthur said bouncing up and down on the balls of his feet.

"I'm going to make a guess at - people." Douglas sighed, causing Martin to snigger.

"Ok, Arthur, who are we flying you haven't been this excited since…"

"Yesterday morning." Douglas interrupted.

"Its him. - I can't believe we're flying him. I hope he'd wearing the hat."

Douglas signed. "Arthur as much as I'm used to your babbling round the bush , I'm not really in the mood to try my hand at breaking the enigma code that is you. So can you just tell us in plain, simple English if your capable, Who has made you so excited?"

Arthur grinned from ear to ear, straightening his back with pride before announcing the name. "Sherlock Holmes."

"What!" Martin gasped.

"I know…It's brilliant."

"Who?" Douglas frowned glancing between the bright face of Arthur and Martin's flush red one.

"Sherlock Holmes. Surely you've heard of him? He's famous. - The Boffin of Baker Street. He's a genius."

"And doesn't he now it/" Martin grumbled turning in his seat to stare out at the tarmac inform of him.

"He solves crimes. Haven't you heard of him. I can't believe you haven't heard of him. I have a scrapbook filled with his cases. I can't wait to meet him. I'm going to get his autograph."

"You'll have more luck passing the test for your pilots' license."

Douglas watched the captain with interest. He'd known Martin long enough now to know there was something up with him. "Where's out tea Arthur."

"Oh, yes. Sorry." Then the young man was rushing out of the door still grinning like the cat that got the cream.

"Alright Martin, what's up?"

"up? - N-nothing. Nothings up."

"You can't fool me Martin. Do you know this Sherlock Holmes chap?"

Martin swallowed nervously, shaking his head a little too much. "Of course not."

"Martin?" Douglas pressed, drawing out the younger man's name.

Martin bowed his head and gave a resigned sigh. They were going to find out soon enough anyway, he may as well tell Douglas now. "I - You could say we're a-acquainted."

"Oh really. How?"

"He's…." Martin swallowed. "He's…"

"He's here!" Yelled Arthur bursting through the door and causing both men to jump out of their skin. "He's here, he's here. - Come see. You have to come see."

Martin closed his eyes and sank down in his seat. "I'm fine here, thank you."

"But you always meet the important passengers. - Mum insists on it."

With a groan Martin forced himself out of his chair, Douglas behind him.

~ SHERLOCK/CABIN PRESSURE ~

John frowned up at the plane a little nervous. "I'm not sure that thing is safe."

Sherlock scanned the metal bird. "It's in full working order. - Though I doubt we'll have a comfortable trip."

John groaned has he hoisted his bag over his shoulder and followed Sherlock up the steps. They were met at the door by an older woman with white hair and a friendly yet shocked face. John figured she was just one of his friend's fans.

He had too types of fan. The younger women and men who found him highly attractive and spent most of their time speculating on the relationship between the consulting detective and his live-in blogger. It was kind of embarrassing but after two years of being in Sherlock's life, he'd given up caring unless it affected his love life.

The other type of fan were the excited older set of Miss Marple types who were interested in the cases. John figured the woman staring open mouthed at Sherlock was one of those.

Sherlock looked at the woman who'd introduced herself as Carolyn Napp-Shappy. He didn't need to ask why she was gaping at him. Sherlock turned his head at the sound of footsteps and sighed at the men walking towards him. One in particular catching his eye. He heard John's intake of breath and couldn't help the smirk spreading across his face. He did love surprising John Watson.

The two men stared at each other blandly. There was no visible emotion of Sherlock's features while Martin looked tired, nervous and just a little irritated. Carolyn cleared her throat.

"Huh, hmm. - May I introduce Captain Creiff."

Sherlock nodded. "Martin."

"Sherlock."

The others just watched them un amazed silence until Arthur announced as if no one else had noticed. "Wow. They look just like each other. - Well except for the hair. That's amazing."

"thank you for starting the blindly obvious once again Arthur." Douglas remarked, his gaze still locked on the two men in front of him.

Finally Martin took a deep breath and turned to Douglas. "May I introduce my first officer Douglas Richardson."

Sherlock looked the man up and down, taking in everything about him. "Divorced. Slight problem with alcohol. One child, daughter. Living in a single room bed-sit without a fridge and a broken boiler. - suffers from kleptomania. - John, don't let the laptop out of your sight."

"cool. - that's brill." Arthur grinned while Douglas looked like he was going to hit the tall detective.

"Ignore him Douglas."

"Sherlock, we've talked about this… Nice." John warned as he pushed past his friend.

"Highly unlikely." Martin grumbled fixing a hard glare on Sherlock.

"John Watson, hello." he held out his hand to the man who shared Sherlock's face.

Martin looked from the hand, to John, to Sherlock then back to the hand before finally shaking it. "Nice to meet you."

"John's my friend." Sherlock announced. "John this is Martin. - My twin brother."

You could have parked the plane itself in the gaping space that was John Watson's shocked open mouth.

~ SHERLOCK/CABIN PRESSURE ~

"Your twin brother?" Douglas repeated for the five time since they'd returned to the cabin.

Martin didn't reply any longer. He just set about contacting the tower the request permission to start this damn dreadful flight.

"Your twin brother?" Carolyn announced barging in to the cabin with Arthur on her heels.

"Brilliant."

Douglas turned to Arthur. "You said you've got scrapbooks?" Arthur nodded enthusiastically. "With photos?" Another bright nod. "And at any point did you think that it was at least noteworthy that your current hero looked like our captain here."

Arthur frowned as if considering his answer then shrugged. "They do have different hair." he said as if that answered everything. "And different names."

"Yes, why is that Martin?" asked Carolyn.

Martin shrugged. "I - I didn't want to be connected to Sherlock Holmes."

"Why?"

Martin was silent for a long while, shrugging as he waited for a reply from the tower.

"Martin?" Douglas pressed.

"Look is it really any wonder…" he snapped. "You saw what he's like. Arthur wasn't exaggerating when he said he's a genius and in case you haven't noticed I…. I'm not."

Carolyn and Douglas exchanged sympathetic looks.

"He solves crimes for fun, knows all kinds of things while I barely made it though university and failed seven times to gain my pilots license."

There was silence.

"So…Sherlock Holmes is your brother. So why do you call yourself Creiff?"

"I - It's my mother's maiden name?"

"Another other siblings hiding in the closest?" Douglas pressed.

"Wait, you said you only had a brother and sister, neither of which were called Sherlock and that your father was a builder or something…"

Martin sighed. "I lied ok. - I have two brothers, him…" he nodded towards the door. "…and Mycroft. My father was in the civil service alright."

"So why lie?" Carolyn asked sounding a little hurt.

Martin shrugged. "Believe me, if you had to grow up with no one but two pompous geniuses for brothers when you could barely figure out the square root of 15, you'd want to hid the fact to. - Being a Holmes was too much pressure to live up too. - now can we just get on with this job, get my brother off this plane and then get back to our normal lives?"

~ SHERLOCK/CABIN PRESSURE ~

"Your twin brother?" John repeated for the five time since taking their seats. "You have a twin brother. - God save us."

Sherlock rolled his eyes.

"There was me thinking you were unique." he laughed.

"I am. - Martin is… well, not me."

"Meaning?" John frowned.

"He'd an idiot."

"Sherlock to you everyone's an idiot." John sighed.

"We'll he'd more so."

John glared at his friend. "He's your brother Sherlock. The least you can be is nice about him, if not to him."

"Why?" Sherlock frowned.

"Because…" John sighed. "It's just the done thing ok. - You don't insult family to strangers."

"you insult Harry to me all the time."

"That's different. - You're not a stranger."

Sherlock gave him that smug, got you, smile and John groaned. He'd walked right into that one. "Fine. But still. - Why didn't you tell me about him?"

"I didn't tell you about Mycroft either."

"That was different, Mycroft made himself very known to me. - I told you about Harry."

"I deduced about Harry. You did not tell me."

"Fine." John huffed fixing his gaze ahead of him. Sometimes he hated trying to argue with Sherlock.

They were silent for a few moments before John finally spoke again. His curiosity getting the better of him.

"So why is he calling himself Creiff?"

Sherlock shifted in his seat and John turned questioning narrow eyes on him. "Sherlock?"

"I don't know. Maybe he just didn't want to be associated with us and decided to use another name."

John turned fully in his seat. "Sherlock?" he drew out.

"He…like I said he's an idiot."

"Sherlock Holmes, what did you do?"

Sherlock met his friend gaze with a hurt frown. "Nothing."

John didn't believe him.

"It was Mycroft."

John groaned. "What?"

"He made him sign a contract."

"What!" John gasped. "What kind of contract?"

"A gag order." Sherlock stated matter-of-factly.

"Please say you're kidding me."

Sherlock shook his head.

"Why?"

"Because he's an idiot."

"Sherlock!" john practically yelled. "He's your brother, stop calling him an idiot."

"He took him seven tries to get his pilot's license, five for his drivers. He barely graduated university and while he was there he lost his team the University Challenge qualifiers."

"And for that you kick him out of the family?" John's face was growing with red with anger. "Bloody hell, you and Mycroft never fail to amaze me."

Sherlock smiled.

"It wasn't a compliment this time Sherlock." John snapped, turning around in his seat, folding his arms over his chest. "Sometimes Sherlock, I wonder why the hell I'm your friend."

Sherlock looked at the furious face of his best friend and guilt clawed at his gut. He hadn't really considered Martin's feeling before but since meeting John he'd begun to think about his baby brother a lot more and realizing that maybe his and Mycroft's treatment of him was wrong. Maybe that what he was doing taking a dull case that didn't so much as intrigue him. He was here to make sure his brother was involved with murders and criminals. Though he'd never admit that to anyone else. - Not even John.

A/N: Ok, what did you think? You guys are always so good at letting me know and I love you for that.

Notes about the story: I'm sure you've already figured them out though. Both and University Challenge are nods to Starter for 10 because I just love that film. Especially Ben's part cause the first time I watched it I wanted to hit the posh twat then Sherlock happened now I get upset when he does get punched.

And the title is a nod to a rather wonderful Mel Brooks movie called Sherlock Holmes's Much Smarter Younger Brother staring Gene Wilder. It's probably my second favourite Sherlock spoof next to Not A Clue with Michael Caine.

Till next time.

"Stay Calm and Believe In Sherlock"

GATERGIRL79

PS. For anyone who's intrested, I have a Torchwood/Doctor Who story posted called Another Second Chance that fixs the end of Children of Earth and the final farewell of The 10th Doctor.