Sherlock Holmes has always been a man of knowledge and facts. And there weren't many occasions when Sherlock Holmes was wrong, but he always missed something. This time it was something truly vital. When he asked her for help, it was necessary. Without her he won't survive the day. Without her John will die. For once he used his eyes to see, but he didn't observe. She was hidden in plain sight. John shot a man in order that Sherlock would live. Doctor Hooper… Molly murdered him to keep him alive.
"What do you need?" Even though her face was half in shadows, he still could see determination grow in her eyes.
"You." In that moment, the remaining flint of fear and confusion was replaced by decisiveness. Molly Hooper was ready for the battle. She only didn't know her role yet.
Sherlock knew two things were relevant tonight, crucial even. One, Molly Hooper was attracted to him since the day she met him.
She knew.
He knew.
And two, because of that fact he also knew he didn't deserve her help. That afternoon, she deduced him. She surprised him. He was supposed to be the man who couldn't be fooled. He spoke the truth. She did count. He always trusted her. Only he hadn't realized that until now.
He always missed something. Sherlock never thought the mousy pathologist would prove him wrong. Moreover, Molly proved his brother wrong. Caring is an advantage. Because she cared for him, four lives will be saved tonight.