Author's Note: This is a series of drabbles in which Sherlock and John must team up with Olivia and Peter in order to solve a case. There's no firm plot or storyline, just some interesting scenes.

Sherlock found Olivia standing in the bleak white hallway, staring out of the windows. She was not uncomfortable in a morgue - not uncomfortable, but sad. Her green eyes were pained as she watched the people walking by outside, going about their everyday business. Sherlock wondered if she looked like this every time she was confronted with another body.

"Caring is not an advantage, Agent."

Olivia didn't even blink at his words. Instead, she kept staring out of the windows as the consulting detective drew level with her and joined her at the windows. For a moment she pondered his words.

"I don't think so," the agent replied finally. "To you, caring is a weakness. To me, caring is an advantage." Now she looked at him. "When I take on a case like this-" she nodded towards the doors, behind which the body was still lying on the slab "-I get into the headspace of the victims because I care. I see what they've seen, and it motivates me to do my job. It helps me save lives."

Sherlock was staring at her now, his eyes slightly puzzled as he tried to understand her point of view. In a way, he could see what she meant. But it didn't really make sense, not to him. There were other ways of solving a case. Getting emotional - and caring about the victims - didn't help. So why bother?

Olivia knew he didn't understand, but she didn't try to force him to. He had his methods, and she had hers. They were opposites in this aspect, but as long as they could work together to save as many lives as they could, she was content to let him work in whatever way he wanted to.

Still - it was going to be a difficult case.