"Mary. Wake up." The deep, loveable, voice of Sherlock Holmes wandered in to Mary Watson's bedroom. She kept her eyes closed for a second but smiled. She propped herself up on her elbows, looked round and there he was, hanging off her window sill, smiling. She tried to stifle a laugh and he winked. She pulled herself out of bed and walked over to the window, she opened it and he hauled himself up until he was standing in her bedroom, brushing off the dirt from his coat and re adjusting his scarf.
"What's up Uncle S?" She sat down on her bed, pulling her long, blonde, hair back in to a pony tail. She was only wearing a t-shirt and pyjama shorts and had left the window open, she was cold. Sherlock noticed and rushed to close it at once.
"Silly Question." The smile never left his face.
Mary sighed, "Okay then, what are you doing in my bedroom at four in the morning?"
"I have something to ask of you." He sat down opposite her in the wicker reading chair she kept by her computer.
"And you couldn't text me?" she rubbed her eyes, she was tired.
Sherlock gave her a look, "We both know your dad checks your messages Mary, a text from me at four in the morning would look more than ominous."
Mary rolled her eyes, "My dad thinks he checks my texts." She got down off of her bed and pulled a box from underneath it, once it was opened Sherlock had to bite his lip to stop from laughing.
"An identical copy of your phone, I underestimate you." He paused for a moment and his brow furrowed, "but I'm disappointed with John and Mary."
"Mum knows."
"Of course she does. Keep explaining."
"The great William Sherlock Scott Holmes cannot guess?" She shot him a mischievous look.
"John told you my full name." Sherlock sunk back in to the chair, he was thinking.
Mary snapped her fingers, "No mind palace right now Holmes. I was telling you about my phones."
Sherlock looked at her, surprised. Mary Watson Junior, his unofficial protégée. His best friends daughter, she was growing up so quickly...
"I gave a few 'friends' at school this number," She held up the fake phone, "and then, you, my mum, my dad, mycroft-"
"Mycroft? Why on earth do you have Mycrofts number?"
"He likes to keep tabs on you."
Sherlock rolled his eyes and made a hand gesture for her to go on, even though he deduced everything she had been doing with the phones, he liked Mary to tell him.
"Well that's it really, I never let the real phone out of my site. The fake phone I leave lying around my room so that when my dad starts snooping he just finds a few benign conversations between me and the people I am supposed to call my friends. He has no idea."
"Very clever of you Mary but the problem with that is that your father is currently standing right behind you. He is angry and confused as to why I am here, our talking woke him up and I suggest that you throw me your real phone now." Sherlock stood up, John didn't say a word, he looked angry.
Mary stood up and grabbed the real phone just as her dad lunged for it. She chucked it to Sherlock and he winked at her one more time before opening the window and sliding down the drain pipe as quickly as possible before John started shouting at his teenage daughter. Mary ran to the window and leant forward on the ledge, she saw Sherlock running across the lawn.
"The favour will have to wait Miss Watson." and then he was gone, back to 221b.