As the grey van drove off down Baker Street when John walked up to 221b.

"Again!" he said "he's left the bloody lights on again! I bet he's fallen asleep and the TVs on! What did I say. The electricity bill was high last time, we agreed... Never mind this is Sherlock Holmes I'm talking about."

But when he walked up to the front door, past the TARDIS that hadn't moved all night, he noticed that the door was open.

"Strange" he thought "The Doctor would have made sure the door was closed and everyone was safe, and Hamish or Sherlock wouldn't have left at night"
When he stepped through the doorway he noticed muddy footprints on the stairs, they were bigger than Sherlocks feet, and The Doctor and they were not Mrs Hudsons or Hamishs'.

In one of the big footprints another foot print was in it, like someone had stepped in it.

And that footprint was recognizable to John straight away, they were the shoes he had bought Sherlock for his birthday and the ones he had been wearing that day.

On the table in the living room John noticed a cup of tea, not long made.

Suddenly he got a text from sherlock -

Crime scene please disturb, get the doctor

When John read the text he read it 2 or 3 times whilst wondering what Sherlock meant. Then, realising that Sherlock might be in danger John raced down the stairs skipping every other step trying not to stand in the footprints, out through the door and to the TARDIS.

"DOCTOR!" he shouted whilst knocking the door. "Doctooor! Are you in there?! It's Sherlock, I think he's been kidnaped"

The sun was starting to rise and John was becoming scared.

"DOCTOR! There are footprint on the stairs bigger than the average mans. They seem to be made by some sort of metal shoe. Doctor are you listening to me!?"

The TARDIS doors swung open and The Doctors face appeared.

"Ah yes well in you come John, in you come. The scanners have told me there is some kind of cybernetic technology in the area, and by your description well, I think Sherlocks been taken by the Cybermen."

"The Cybermen? Who are they?" John said whilst looking around the TARDIS, he was still surprised about the bigger on the inside technology.

"Long story, in short there robotic suit with a brain inside, so they don't feel emotions."

Then The Doctor put a picture of a Cybermen up on the monitor."As to can see they look like a robot and what they've done is upgraded themselfs with cybernetic technology so they live forever, without emotions like pain, sadness..."

"Wait...wait, they use to be like us, actuall flesh and blood. Why would they do that to them selfs... Is that . Is that why they want Sherlock? Are they doing to do that to him?! Please don't say that's what they've taken him for!"

Johns eyes were wide with fear, his body started to shake and he felt like his knees would give way at any moment. The Doctor put his hands on Johns shoulders to help him keep his balance.

"I don't know John, I really don't know what they're doing so were going to find out. But I promise you I will get Sherlock out of there alive, even if it kills me"