Sherlock the Baby sister

by CcTravesty

*I'm totally new in writing English fan fiction since my mother tongue is actually Chinese, so there might be some literal errors in my story, and please forgive me.* John and Mary Watson's child has been born, and somehow Sherlock is on the duty of taking care of the baby for a whole day... There will be more interesting stories about the day in the next chapter!

1. Chapter 1

Greg Lestrade rushed down the stairs two steps a count with his right hand busy dialing to the Scotland Yard.

"Back up! I need maximum back up. Baker Street, NOW! "

Greg threw himself into his BMW 530D GT, then turned on the siren and put it on the roof, and steered his sports car toward the main roads.

'HELP.'

'BAKER ST.'

'NOW.'

'HELP ME.

'PLEASE.'

The messages were totally the same with those he got before John's wedding. Greg had hesitated for zero-point-five second if Sherlock texted him for another petty speechless thing such as the best man speech. However, he just called for back-up anyway. In case.

A honk dragged his wandering thoughts back from the messages he got two minutes ago.

"Whatever comes wrong, Sherlock will be able to deal with it. He is Sherlock Holmes…" Greg murmured to himself while the tires making a sharp scream because of his U-turn. Cars honked again.

Greg ran upstairs. The door was open, he rushed into the room.

"What's going on?" Greg asked with puffy voice.

The sitting room was empty. Greg started to feel real panic. He searched around the room. The wrinkled newspaper scattered over the table and the cup tipped on the armchair, coffee stained the armrest.

"Sher-"

"This is hard." Sherlock's voice appeared from behind.

"Wha-" Greg turned back to Sherlock and suddenly he couldn't find his tongue.

"Do you know how to take care of children?" Sherlock held a little boy by one hand, and lifted a book by another.

The bronzing sentence 'HOW TO TAKE CARE OF A LITTLE KID' on the hardcover book was shown to Greg Lestrade.

The sound of siren approached, and the wind brought with propeller manifested that the helicopters were not far away.

"What?!" Greg found this feeling familiar. The feeling of the urge to punch on Sherlock Holmes' sharp cheek bones and shouted to him.

"I need a nanny." Sherlock seemed to find something wrong from Greg's expression. He paused for a second.

"Didn't go to any trouble, did you?"

The urge of throttling Sherlock Holmes overwhelmed Greg. He told himself to calm down and took a few deep breaths to stop himself from resting his hands around the consulting detective's neck.

The noise of propeller couldn't be ignored now.

Sherlock finally noticed the siren approaching and the noise of propeller. He paused and saw the white window curtain blown. Slowly, slowly, Sherlock turned back to Greg.

The boy Sherlock held started crying.