11 years ago (3rd person PoV)
It'd been a year, since Kara and Sherlock became friends. They spent most of their time together, except for when she went on dates with her boyfriend, Sebastian Wilkes. He was a tyrant and a bully, and Sherlock despised him. Kara was oblivious to this and continued to go out with him.
It was June, and Sherlock was sitting in the library, researching ionic compounds with low melting points for an experiment he was going to carry out. After gathering his data, he walked out of the library, only to bump into Kara and Sebastian. He had his arm draped casually around her shoulder, which made Sherlock's insides writhe. Kara's face lit up when she caught sight of him. "Sherlock !" She exclaimed "Hi!" He grimaced "Hello. I thought you were on a date ?" Questions Sherlock. Kara's smile faded. "We were, but Seb has to complete his essay on Global Atmospheric Change." The aforementioned "Seb" gave Sherlock a shark-like grin. "That was due a week ago." Stated Sherlock accusingly. Kara blushed, but said nothing. Sherlock sighed "Kara, when you decide to spend your time with people who have higher I.Qs than rocks, feel free to come find me." He said, stalking away. He grinned as he heard Kara hastily apologise on his behalf and run after him. "Sherlock !" She hissed. "Go apologise!" I scoffed "No, Kara the man is a bully and a complete and utter idiot. How can you not see that ? Your time could be spent in better ways." Kara shook her head.
"What. Like helping you do experiments ?" She asked exasperatedly. Sherlock smiled "Exactly." At this, Kara grabbed his arm. He turned, only to be slapped across the face. "Ow !" He yelled, clutching his jaw. "I'm sorry." He said with a sigh. Suddenly, Sherlock's pompous demeanour deflated and he began to walk away. "Wait, Sherlock. I'm sorry." She called. He walked outside, squinting at the bright sun. "Why do you hate him so much ?" Asked Kara sadly. "You're my best friend Sherl, you should be happy that I'm happy." Sherlock looked away, calming himself before revealing the truth. "He's a tyrant - a terrible person. But that's not it. The reason I don't approve of you're relationship is, it's because-" he stopped. Then kissed her. A small, gentle kiss, but when he moved his head away, Kara grabbed his neck, keeping his lips to hers. Finally, he broke away. "A-are you sure ?" He asked hoarsely. Kara nodded, before kissing him for a second time.I woke up to cold water being poured over my head. I was tied to a chair, my knees bound to my chest. I glared at Moriarty, whose face was illuminated by a sadistic smile. Then, I realise. I was tied up with rope, which would soon shrink, due to the water, cutting into my wrists. "Good Morning." He sang "Now that you're awake, the fun can begin." He said, a murderous glint in his eyes as he advanced towards me.
AN : Oh No! Poor Kara. On a different note, I have realised that I make a lot of grammatical errors. If you spot any, feel free to let me know, politely, in the comments ❤️❤️❤️

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Code Name : Chaos (A BBC Sherlock Fanfiction)
FanfictionTwelve years ago, Sherlock Holmes met the brilliantly mysterious Kara Dives as a young man. Twelve years ago, Sherlock Holmes' heart was broken and he locked it up permanently. The present. John and Sherlock are thrown back into their world of crime...