Be gentle with me, this is my first attempt at a Sherlock Fanfiction.

I don't own Sherlock, only my OC.

Apologies for spelling/ punctuation mistakes I have probably made.

Today was the day.

Today was the day that Carl Powers would finally pay for laughing at him. And he could hardly wait.

He had argued with himself for days on end now, as to wether he should actually be at the pool when the events where happening. But he couldn't help himself. So there he was, waiting a little impatiently for Seb to arrive with his little sister. Breathing in the chlorine filled air as he began to pace.

Anyone expecting to get away with murder, always has a believable alibi. It was the reason he was waiting outside, his swimming trunks and towel carelessly thrown into the bag slung over his shoulder.

"JIM!" He heard from behind him now. He instantly stopped pacing and spun on the spot to face the direction his two companions were coming from. He allowed a small smile to grace his face at the sight that greeted him. A little girl no older then four was running quickly towards him, her arms already outstretched. Blonde hair flying behind her as she did so.

"Jim, Jim, Jim, Jim, Jim..." She sang as she got closer to him. He let his bag fall to the floor and outstretched his arms, ready for her arrival.

In her excitement to see him, he almost toppled to the floor when she jumped into his arms. But he managed to keep his feet firmly on the floor. He spun her around a few times, receiving her bubbly laughter in his ear. When he was finally still, she moved backwards slightly, so she could look him in the eyes as she spoke.

"Are you here to help Bas teach me how to swim?" She asked, hope shining from her eyes.

"You know it." He replied. She hugged him close again before her brother caught up to her and made her walk.

"Put her down Jim, you don't know where she's been." Sebastian spoke up when he finally reached them. Jim, who had always had somewhat a soft spot for the blonde haired munchkin he was currently holding, pretended to act shocked and held her head closer to him so he could whisper, just loud enough for her brother to hear:

"Don't you listen to him Emmy. He's just sour that you prefer me to him." He told her as he put her down on the floor where she latched onto his hand before she took Sebastian's offered one with her other.

"Ready for today Jim?" Sebastian asked looking over at the black haired boy, careful not to sound like he was talking about anything other than his half sister learning how to swim. But he needn't have been cautious; Emily was busy continuing with her chorus of; "Jim, Jim, Jim, Jim, Jim..."

"I was born ready." Jim answered without turning to look at Sebastian. His voice had taken on that menacing tone that was capable of sending shivers down spines.

"You ready Milly?" He asked looking down at the only person who could make him smile. She lifted her head to look up at him and gave him a smile that was filled with all her baby teeth before nodding.

"Will there be mermaids?" She asked innocently.

"Who knows." Seb answered.

"And Dolphins."

"More than likely." Jim replied.

"And Starfish and Whales and Fishies?" Seb smiled at her innocence. If only she would stay this way forever.

"Millions." He answered.

The reception room was empty, apart from the receptionist who was busy filing her nails. She didn't even bother to look up when they reached the desk.

"If you go through, you'll have to wait; there's a swimming tournament going on." She sighed in a bored manner.

"That's ok. We can go and watch." Jim said with extra charm before he slapped some money on the counter.

"Go through." She added taking the money from the counter and waving her hand absent mindedly towards the doors.

The trio set off into the pool hall to find it full of people; waiting for the action to begin.

"Seb." Emily yanked him down to her level with her tiny hand. "Will I drown?" She whispered to him as if she didn't want Jim to hear.

He smiled before tickling her slightly, making her laughter resurface. "Not with me and Jim around." He sent her a wink." Let's go get you changed. Jim. I'm taking Emmy to get changed."

But Jim only nodded in response as he eyed up his target for today. Carl Powers was already pointing and laughing at him, talking to his friends about him.

But for the first time, he was ok with it; after today Carl Powers would never laugh at him again.

"Only Jim can call me Emmy." The little girl insisted. Bringing Jim out of his thoughts. He smiled slightly to himself. He loved it when she spoke those magic words.

Seb only sighed and rolled his eyes as he pulled her further away from Jim into one of the only free cubicles.

She stood waiting patiently as he rifled around in the bag he had bought with them, searching for her costume.

"Reach for the sky." He told her as he turned back around to start undressing her. "Don't even think about it." He pointed his finger in her face when he noticed her eyeing the blue curtain devilishly. She had a habit of streaking around the garden when she was bored. He knew that look. She had been preparing to make a run for it when he next turned his back.

She pouted a little as he made her step into her green Kermit the Frog costume, but she burst into a fit of giggles when he started tickling her.

"Take the armbands, and go and stand with Jim. Don't even think about running." He told her sternly as she took the armbands off him.

That was one of the things he loved about her; she always did as she was told. Except when it was their Mother telling her what to do, then she would always do the complete opposite of whatever she was asked. He watched her for a moment as she made her way over to Jim, who still hadn't moved from his position, and took his hand with her free one, before quickly changing himself. He didn't want to miss any of the action either.

The race was about to begin. Carl didn't have much time left. The crowd of school teachers, other pupils and parents had all gathered around the edge of the pool, ready to cheer on whoever they had come to support.

Jim, Sebastian and Emily had moved upstairs when it became apparent that they would not be able to see anything from downstairs. But from their new vantage point, they could see everything. Even Emily who had her arms wrapped firmly around her brother's neck and her legs around his waist, sitting comfortably on his hip, could see everything.

"Do you know someone down there?" She asked her two favourite people in the world. She was more than a little curious as to why they had moved to get a better look when she didn't recognise anyone.

"No, we just thought you'd like to see how it's done first." Seb told the lie to her gently. She looked, for a moment, as if she didn't believe them. But she had seen Jim when he was angry, although he didn't know it, and that was something she never wanted to see again. So, instead of protesting, she simply nodded her head and turned to look at the pool again.

The loud cheering bothered Emily. She wasn't used to being around that many people at one time. She covered her ears with her tiny hands but continued to watch none the less.

None of them had any idea of how long they had been stood there when it happened.

One of the swimmers began to splash, like Emily did in the bathtub. But it quickly turned into something that seemed much more serious. The splashing became more urgent, almost as if the person had no control over what they were doing.

People were beginning to take notice and panic. They were shouting to the lifeguards and medical staff, anyone who would listen.

But by the time the boy was out of the water, he wasn't moving. Didn't seem to be breathing.

Jim was smiling like Christmas had come early, but quickly disappeared into the shadows behind them, he had a quick job he needed to do before they left.

Sebastian was holding tightly onto his sister. She appeared to be fine, but she couldn't seem to look away from the scene down below them.

He felt no remorse for the boy. The silly idiot should never had laughed at Jim. It would most probably be the last thing you ever did if you made that mistake. Carl Powers was evidence of that.

He gently placed his sister down on the floor and crouched in front of her.

"Do you still want to learn how to swim?" He asked her gently. To which she shook her head, and stood on her tip toes to look over the balcony again. "Let's get dressed." He started to walk away but turned back when he realised no one was following him. "Emily." He called to her, holding his hand out.

She ran over to him and took his hand, holding onto it tightly as they descended the stairs.

Not even bothering to step into a cubicle, he took out her clothes and dressed her; leaving her costume on underneath.

"Trainers hidden?" He asked Jim who appeared behind her out of nowhere.

"Ohhhh yes." He replied with that smile that meant he couldn't be happier.

The two boys each held a hand out to the girl as they left the building. Neither of them noticing that she kept glancing back every few seconds.

Please let me know what you think?

This story will continue into A Study In Pink just to let you know...

:D

Thank you for your time.

FB