You are also a police officer at the same station as the platform; you are the rank below lieutenant, which is Greg. However, you and Greg are very close to each other, ever since the first You two got along immediately and a connection was made instantly.

This is why one day you and Greg went to the moors near Baskerville for a holiday (and also because Mycroft asked the platform to keep an eye on Sherlock during that holiday). And now that Sherlock has discovered it, you two are forced to work during your holidays. That's how you ended up in the Darkmore looking for Henry Night. When you You saw him, he was already with Sherlock and John, the latter trying to reason with him to kll himself.*

After a car chase and Dr. Franklin jumping on mines, the investigation is finally botched..

The day later, you and Greg are sharing a breakfast in the auberge in the morning

"I think now we can finally enjoy our holidays?"

Greg looks at you with a smile as you sip in your coffee.