A Tale of 2 Sisters; Sherlock Fanfic

"And Irene said you were boring, Sophia."
-Jim Moriarty.

After the untimely death of her parents, Sophia, a sweet southern Bell with uncanny abilities, was whisked away to London by Irene Adler; a music teacher with mysterious eyes who claimed to be Sophia's long lost sister.

Sherlock Holmes has been brought back from the brink after the reappearance of Moriarty, his arch enemy. He's been tasked to put him out of the world's misery or else. It's do or die for Sherlock, and the clock is ticking.
In a last ditch effort to track down Moriarty, Sherlock seeks the counsel of a woman long thought dead. A woman he seemed to care for; Irene Adler. But when he meets her young sister, Sophia, his beautiful mind becomes plagued by a terrible disease.

Sentiment. True, undeniable sentiment.

Now, brought together by the world of murder and mystery, and heavily oppressed by the powers that be, Sherlock, Irene, and sweet Sophia are warped into a dreaded love labyrinth where only one woman can come out alive.