BBC Sherlock x Younger!Superpower!Reader

    "Ever heard of knocking Detective Inspecter?" Sherlock said as he sat up properly. "*huff* Sorry, *huff**huff* but you really have to see this.*sigh*" Lestrade takes a deep breath to try and compose himself. "There was a hugh fire in a house down the road from the Yard. There was only one survivor." "What does this have to do with me?" Sherlock asked, generally confused about why the DI came to him for this kind of case. "The survivor is a 14-year-old girl and she was in the heart of it all. Yet, there isn't a scratch on her. She said that someone tried to kill her. She believes the name starts with an 'M'." Sherlock sprang to his feet and went to his room to get dressed while yelling over is shoulder, "Text me where to meet!" Lestrade nodded and left, leaving a baffled John Watson.

    Sherlock and John soon arrived at Scotland Yard for the most recent case. Lestrade approached them, "Now, I know you want to ask the girl a few questions, but go easy on the kid. She just lost her whole family because of some psychopath." Sherlock just smirked and said, "Of course." Lestrade just shook his head and left. 

    Sherlock and John enter the interrogation room to see a small girl wearing a black hoodie, worn blue jeans, and sneakers. She looked up at the sound of the door opening and closing. Her nervous (e/c) eyes looked between Sherlock and John. "No need to get worried, we are only here to ask a few questions." Sherlock said. The girl nodded her head weakly. The duo sat down across from her. "First, what is your name, girl?" Sherlock asked as he sat. "(y/n) (l/n)." the girl said quietly and shyly. "Do you know the name of the man who started the fire?" (y/n) shifted a little before responding, "Mister Moriarty."

    John and Sherlock looked at each other before turning their attention back to the young girl. John asked next, "Did this man happen to have any connections with your family?" (y/n) nodded before speaking, "Yeah, he worked as an IT with my dad at his job in the lab." "What did your dad do?" "He did a lot of science with genetics and gamma radiation." she said. Sherlock took in all this new information. What would Moriarty want with a kid?

    "Do I have to go into foster care?" (y/n) asked sadly. Her family died in the fire. John nodded his head. (y/n) was now nervous, "I don't want to go in foster care. It's too dangerous for other people who don't know me." Sherlock questioned this, "How would that be?" (y/n) just shook her head, "It just is. I don't want to talk about it." Sherlock then got an idea. He wanted answers to this intriguing mystery, and the only way was to make this girl trust him fully. "How about you stay at my flat? At least until you feel comfortable with foster care by then." Sherlock said. John turned to Sherlock, baffled. John never would've thought Sherlock would have that much 'heart'.

    "Are you sure? I don't want to cause discomfort or be a waste of space." (y/n) said. Sherlock responded, "Of course I'm sure. I did give you the offer, didn't I?" The young girl thought for a moment, weighing her options, before finally agreeing. All three of them then got up and left the room, but then were stopped by Anderson, Donavon and Lestrade. "Oi! Where do you think you're going with the kid!?" yelled Anderson. (y/n) hid behind John, which Sherlock obviously noticed. "Pipe down Anderson, you're scaring the poor girl. She is just going to live with John and I until she is comfortable with the idea of foster care." Sherlock retorted. Anderson turned to (y/n), "Is this true Miss (y/n)? Because I should warn you, this man is a psychopath."

    (y/n) stood behind John for a moment longer before stepping out. "Yes sir, I have agreed to this. And sir, I don't think it's polite to judge people when you have done much worse." Anderson stood there for a moment, mouth agape. "And exactly what have I done Miss (y/n)?" Anderson said back, trying to be smart. "Well, you are cheating on your wife, right? I mean I could be wrong but the way you and the lady look and act with each other seems to give me enough evidence." (y/n) said quietly as she started to hide behind John again. 

    "Why you little-" Anderson reached for the poor girl and grabbed her wrist forcefully, completely forgetting the fact that his boss was standing there. "Listen here you little runt-" "Please let go of me." (y/n) said as tears started to form on her eyes. "Why am I hurting you?" Anderson said mockingly. "No, it's because I don't want anybody getting hurt." Right as she finished that sentence, Anderson's hair caught on fire. He screamed and ran around the room until someone extinguished the flame, leaving a now bald Anderson.

    John and Sherlock turned to where (y/n) had just been but didn't see anyone there. Instead they saw her crying in a corner. John quickly ran up to her to comfort her, whilst Sherlock was staying back. "Anderson! What the hell was that?!" yelled Lestrade. "That little freak set my hair on fire!" At those words (y/n) cried even more, John sending a glare that could kill towards Anderson. Lestrade was now yelling at Anderson to get lost while Donavon was trying to defend him.

    While that argument was happening, Sherlock approached the two in the corner. "Let's get home. I don't need my IQ dropping any lower from this." Both (y/n) and John nodded and stood up and left.

    By the time they all got home, (y/n) was asleep from crying. John picked her up and put her in his bed for the time being until arrangements were made.

    "How did Anderson's hair get set on fire, Sherlock?" John asked as he sat in his armchair facing Sherlock. "I don't know, but something about that girl intrigues me." Sherlock responded. "Yeah, about that. What was your plan on keeping (y/n) here anyway? I know you're not that kind of person." Sherlock turned to John, "I need answers, John, and to get them I need her trust. Plus, if she were sent away to another home, Moriarty might burn that one down too. If she keeps moving from home to home because of him then we'll never get answers."

    John sat there, contemplating his words before accepting them. This was definitely going to be an interesting experience.

    John was sipping on his tea and reading the paper while Sherlock was in his mind palace when (y/n) trudged in. "Oh, (y/n), would you like some breakfast?" John asked. (y/n) nodded and went to sit on Sherlock's armchair. John came back from the kitchen, "Bad news, we'll have to go out to eat. How does iHop sound?" (do they even have iHops in London? XD) (y/n) shifted a bit, looking uncomfortable. "I guess." She said as she put on her shoes. Sherlock sprung up from the couch and ran to get changed, scaring (y/n) in the process. John just shook his head while zipping up his coat.

    (y/n), John, and Sherlock sat in a booth looking at their menu's. Surprisingly, Sherlock ordered something, and by something I mean a milkshake. John and (y/n) ordered a short stack. So while they waited, they started up a conversation.

    "So, (y/n), what do you like to do?" John asked. "I play the (instrument) and few others and I like to listen to music a lot." she said, starting to get more comfortable around the bloke. "Sounds like you're into music. Anything else?" "Well, I like science and I'm good at math and tech stuff." (y/n) smiled, and to be honest here, John was glad to see that smile. "Well, then you could help me with a phone issue, see someone changed my ringtone and I can't figure out how to change it." John showed his phone to (y/n). "Oh, that's easy." she said with a smirk. She played around with the device for a few seconds then handed it back to John. "There you go, set to default."

    "Thank you, that's been bugging me for awhile now." By then, the waiter brought all the orders and the trio began to dig in. As they were all eating (minus Sherlock) a 'BANG!' was heard in the building along with some screams. "Everybody! On the floor now!" said a man in a mask. Everybody dropped to the floor. John was holding on to (y/n) to comfort her whilst Sherlock sat on the floor sipping his milkshake (because he's too cool for that kind of stuff XD).

    "Now! While my boys are getting the cash, no one is to do anything!" the man said as he paced the building. He stopped and looked (y/n) and came up with a 'brilliant' idea. He quickly snatched her from John's grasp and held a gun to her head. "If anyone even thinks of doing anything, the girl gets it!" John sat there frustrated because he can't do anything, rendering him useless. Sherlock looked up, "I wouldn't do that if I were you." the masked man look at Sherlock. He smirked, "He. I guess you're right. I should put a bullet through your head instead!" (y/n) gasped. 'No,' she thought, 'no one dies today.'

    Just then, (y/n)'s eyes turned crimson red and she grabbed the man's throat, pinning him to the ground. "You..shall not kill nor commit any crime against law." The man's throat was now burning and he screamed in agony. "Your crime," (y/n) yelled, "robbery and attempted murder! Your punishment, torture!" The man continued to scream in pain as (y/n) burned his throat with her hands. John, Sherlock, and practically everyone in there was now staring in awe. Soon, she threw the man into one of the tables, where he lay wheezing.

    John and Sherlock stood, making their way to (y/n). "(y/n)?" John said. She turned to face them only to pass out falling in Sherlock's arms. "Her eyes..." Sherlock said as he picked up the young girl bridal style. "Yeah.." John said as he looked at the man on the table. "Let's head home." Now there's something both John and Sherlock can agree on.

    Sherlock laid (y/n) on the couch then began to pace around the room. "Now I see why she doesn't like to be in a public place." John sighed as he plopped down on his armchair. "How...how...how..." Sherlock kept muttering to himself as he paced. "It's not possible to do that with your bare hands. How?" "It's because I'm pyrokinetic." (y/n) said, rubbing sleep from her eyes and stopping Sherlock's pacing. "What?" (y/n) sighed. "It means I have the ability to excite the atoms within an object and I'm capable of generating flames from thin air, not requiring the consumption of oxygen or combustible objects to maintain the flames. I can also increase the temperature in my proximity, create flames, and endure extreme heat and flame without being harmed."

    Sherlock let the new information sink, still not believing it. "So...that's how you survived the fire?" (y/n) nodded in response. John sat there flabbergasted (yes, I used that word ) at this. "So you have, like, superpowers?" John finally asked. Again, she nodded. "Anything else?" "Well, I have the power to heal others and I can fly. Though, even though this only happened with my family, I can create a telekinetic link with people I trust completely and care about a lot. But I can't control that. It just happens." John and Sherlock were now staring wide-eyed at the kid. Who knew it was actually possible? Sherlock clapped is hands together, "Well, sounds like our adventures just got more interesting, John."