Sherlock hurried across the room to look at the computer, "What is it? Quickly, where?" he questioned.
The map is now indicating the precise location of the phone.

"It's here"

"It's in two two one Baker Street" James answered in confusion.
Sherlock blink in confusion as well and straightened up.
"How can it be here? How?" a frustrated Sherlock asked with a mixture of confusion and disbelief.

"Well"

"maybe it was in the case when you brought it back and it fell out somewhere" Greg suggested, trying to help.
But it frustrated sherlock even more, "What, and I didn't notice it? Me? I didn't notice?" he shot back.
Gestured to himself, "Anyway"
"we texted him and he called back" Jane replies and Lestrade ignoring her, turns to his colleague.
"Guys, we're also looking for a mobile somewhere here, belonged to the victim..." Greg gave out orders as Sherlock tunes him out.
He begins to remember things, "Who do we trust, even if we don't know them?"

Behind Mrs Hudson, a man has reached the top of the stairs.
Wearing a cardigan and with a cap on his head obscuring his face.
He has a badge in a leather holder on a cord around his neck, a licensed London cab driver.

"Who passes unnoticed wherever they go?"

A black taxi drives down a rainy street with its sign lit indicating that it's for hire.

*Railway Station*
Sir Jeffery Patterson walks to the cab rank and raises his hand to a taxi.

"Who hunts in the middle of a crowd?"

Sherlock stands lost in thought, James Phillimore alone across the road.
Huddled against the pouring ran, and a vacant taxi drives along the road behind him.

Beth Davenport looks wrojnd desparingly when she realises that she doesn't have her car keys.
Nearby, a vacant cab pulls up as Sherlock mind racing...pulling all the clues together.
Jennifer Wilson arrives at a London train terminus and gets into the back of a taxi.
Sherlock turns his head, still putting it all together as on the landing...
The taxi driver takes a pink smartphone from his pocket and press the screen.

Beep!

Sherlock went and gets out his phone from his jacket pocket, looking at the screen to see a message.

Come with me.

Sherlock turns his head towards the door to see...
The taxi driver turns around and calmly heads down the stairs.

"Sherlock"

"you okay?" Maria ask Sherlock with concern, noticing her friend zoning out.
Pulling him out of his thoughts, "What?" Sherlock said and turns to Maria.
"Yeah, yeah, I-I'm fine" Sherlock stuttered, dismissing.
But Maria not buying that, "So, how can the phone be here?" James inquired.
"Dunno" Sherlock answered, vaguely.
"I'll try it it this time" Connor suggested as he went and gets out his phone.
"Good idea" Sherlock replied with a nod of his head as Connor picks up the label from the table.
Sherlock went and heads towards the door, "Where are you going?" James asked.
"Fresh air. Just popping outside for a moment. Won't be long" Sherlock answered before leaving the room.

"Something doesn't feel right"