Chapter Text
Mycroft said "imagine what happened to the other"
So, what if, Sherlock isn't actually Sherlock.
He's adopted. And the real Sherlock ran away or something many years before.
So Mr & Mrs Holmes were so devastated that they adopted and renamed the kid to Sherlock. They taught him how to deduce, and everything else that he knows.
But... where is the real Sherlock now?
Moriarty. Moriarty is the real Sherlock Holmes.
"You and I, we're alike." More than they will ever know.