Prologue
"Mycroft... you can't go to school."
Mycroft paused in his packing, his long hornbeam wand in the process of being tucked delicately into his neatly organised trunk. He leveled Sherlock with a patient look not really befitting most eleven year olds. "I can and I must,"he said sternly. "I have things I want to accomplish and I can't do that without a proper education."
"But-"
"No but's, Sherlock,"Mycroft said slipping the wand into a safe compartment and closing the lid. "I have to go and you have to stay here and take care of Mummy. I'll send an owl every week and I'll certainly come home on holidays." He was prepared to end the matter completely but a crack at the window stopped him. There was another crack and the a further tinkling sound before he looked up.
The glass of the window had delicately began to break, the crack spiderwebbing and making tiny shards tumble to the floor. Following in sync with it, the one next to it began to shatter as well, then the next one on the otherside of the room. Mycroft narrowed his eyes and said sharply,"Sherlock. Control yourself; Mummy was so upset the last time this happened. It's highly undignified for a young man like yourself to allow your magic to run rampant."
He turned his gaze back down on the small boy, whose eyes were watery and whose cheeks were red. Sherlock sniffled and rubbed his nose, sucking in a breath so sharp that he hiccupped. Mycroft's lips thinned and he let a breath out through his long nose.
"Sherlock... I'm not sorry that life beckons me,"he said. "I am, however, sorry that this upsets you so... I will owl often and... if you're behaved and well mannered, I will send along some texts books or... perhaps an interesting magical device for you to experiment with."
Sherlock tried to keep his face straight but his bottom lip wibbled. His silver eyes were glaring a hole into the place over Mycroft's shoulder. Mycroft let out another breath. "I promise that I'll keep in contact, Sherlock,"he said and then he left, dragging his trunk out with him.
Sherlock watched him go and the glass in the windows exploded in a shower of beautiful crystals.
Author's Note: Yeah. I've been playing on Pottermore which lead to a discussion with my mom on the various Houses the Sherlock characters would end up in, which lead to fic ideas... Anyway, this is just the prologue. Its unbeta'd and unbrit picked. It introduces Mycroft at 11 and Sherlock at 4. For anyone curious about Mycroft's wand, I worked pretty hard to find wands that matched their personalities; they were harder than the actual houses! I found Mycroft's completely by accident using the Harry Potter Wiki. His wand is Hornbeam and Dragon Heartstring, thirteen and a quarter inches, and its supple. I chose Hornbeam because it usually picks wizards or witches who have one pure passion/obsession/vision that will be fulfilled. It also adapts so completely to the owner that it even takes on their principals and morals and should it be asked to do something that goes against its these principals and morals, it will refuse. Dragon Heartstring tends to be the core that has the most power; it fits for someone who is the British Government... and will be the Wizarding Government as well, haha. Anyway... I'll try to highlight the wands of characters as they're introduced and explain my reasoning behind them and everything.