Title: Vanish.
Summary: To this day Mycroft still doesn't know where did Sherlock use to go.
A/N: Thank you xDarklightx for reviewing and thank you to everyone who followed or favoured.
Mycroft as always has kept a close eye on his brother all his life.
At first Mycroft thought that Sherlock has developed a new way of helping him think, but that can't be the cause for Sherlock got out on different random intervals, and would always come back the next morning looking normal.
After that Mycroft was afraid that Sherlock started to take drugs again, instinctively he knew that wasn't the cause, but he sent someone to look through Sherlock belongings when he was out on a case just to be cautious. He found a box of nicotine patches and a box of cigarettes.
After several more fruitless tries to solve this and a few months, Mycroft was at the end of his rope. He didn't want to resort to this, he really didn't.
Several entities were dispatched with the sole goal of tailing Sherlock.
Sherlock could feel the gaze of Mycroft flunky on his back, who else would wear an expensive suit here? He was suddenly pulled towards a dark alley, he felt as though someone had broken an egg on his head, like a flood of cold running down over him.
"Did you know you were being followed?" Harry whispered in his ear.
"Of course," Sherlock scoffed as he embraced Harry in a one-armed hug.
"Let's go." Harry said smiling, extending his hand for Sherlock to take.
Together they disappeared from muggle London to explore the magical side of it, leaving behind a very confused lackey who could have sworn that Sherlock entered a dead-end alley a few moments earlier.