Watching Over Each Other

Despite Sherlock's blindness increasing more severely, he still goes to crime scenes with the faithful doctor, so all appears fine but isn't. It's crucial John must learn to "see" how Sherlock once could. He loathes the black inevitable void and resists all help given- especially detests the white cane. NO Slash/Vulgarity. Happy Ending! BOOK 2 of IN WHOSE EYES?