After the two reach the hospital Sherlock begins to make his way to the laboratory. John simply trots behind the detective as he mumbles to himself. Once they reach the laboratory Sherlock instantly begins to deduce the pair of sneakers.

"John, what do you notice about these sneakers?" John comes over and picks one of them up and begins to closely inspect it. "Well, they seem well worn but well kept. They most likely belonged to a young athlete." John set the shoe back on the table and waits for Sherlock's response.

"Well John that was very good except the fact you missed allmost everything of importance."
The next thing John knows Sherlock has launched off into a huge spiel on who wore the sneakers and where. All the while Sherlock was looking at samples of the shoe under a microscope.
"Brilliant" John mutters under his breath.
"Hmmm? What was that John?"
" oh piss off. You know exactly what I said. "
"True. But now we just need to figure out the next part of the puzzle. I have gotten all of the information I need from the shoes." Sherlock says as he stands up from the chair and in one motion throws both shoes into the trash bin with a hollow thud. "I think it's safe to say we can head back to the flat for tonight. "
John nods in agreement stifling a yawn.
The two head out to the dark rainy street. John runs out to grab a cab with his jacket pulled up to cover his head to help keep the stitches dry. while Sherlock stands under the awning fiddling with his phone.
"Sherlock! Hurry the cab is waiting!"
Sherlock pockets his phone and heads over to where John and the taxi cab are waiting.
Once they arrive back at 221B Baker Street John hangs up his damp coat and starts to head to his bead room. Remembering that the explosion took out most of the front room and a small part of sherlocks wall John turns around to face Sherlock.
"Sherlock do you want to bunk with me tonight because of the explosion?"
Sherlock walks over to his favorite chair and brushes it off a little and settles into his thinking position with his feet tucked up under him, his hands on top of his knees and his hands steepled under his chin "No. I was not planning on sleeping tonight any ways. Good night John "
"G-night Sherlock"