Plot- Sherlock is so busy with a case he refuses to sleep, he doesn't seem to believe he needs it, but when hes so sleep deprived and ill, and can't carry on, It might be his newest assistant who can even force him to stop and take a break.
Sherlock was sitting at the table looking at various clues he had taken photos of, He was working on a case and seemed to refuse to sleep. He had been at it for awhile and ignored John's comments about needing sleep as John was on the way to his job at the hospital.
He was tired, but he refused to admit it, or get any sleep, he quite simply believed that he didn't need it. He would occasionally rub his eyes.
"MMm," Sherlock seemed to be deeply thinking. He was likely to snap at anybody who interrupted his thoughts. Three men murdered in three different cities at different times, but the killings seemed linked. Sherlock was trying to work out how.
Even tired he could still force himself to solve this case. He tapped his fingers on the table. He really did seem to be focused on what he was doing.
He just frowned when he got a text from his brother. He was going to ignore that as he had work to do. Sherlock was quite busy.
He looked around , he was likely not to stop what he was doing, until he collapsed from exhaustion, which would probably be awhile.
Hearing a knock on the door, he turned his head and sighed.