Why Sebastian was introduced?

Some of you might remember that originally Tyson knew, the now closed account, 'sniperoftheyear' and their relationship was positive, it was how he originally met Jim. So why did we introduce the new Sebastian?

When Tyson was used on stage he had a demon from his past who abused him who had only ever been referred to as "The Colonel". Since Tyson is fairly well established in the Sherlock community now, Peter and I decided that "The Colonel" could be Colonel Moran as he was discharged from the army and went to India like Tyson had. We decided that it would make sense that eventually the colonel would come looking for Tyson.
It was Peter's decision for Sebastian not to get on with Jim, his reasoning was that it you looked at it from Sebastian's point of view Jim has taken away Tyson from him so naturally would dislike him. Sebastian's point of view may change over time but that is something to discover later on in time.

I hope this answers your question, anon.

The First Monastery: Part Three

Summery: Tyson is healed enough that Sebastian says they can leave. They set off in the middle of the night.
Part One.
Part Two.

The First Monastery: Part Two.

Summary: Healing Tyson / more on how Sebastian isn't a complete monster.
Sorry that this one is short but there's not much to tell.
Part One.
Part Three.