[John's brows knit together a little, studying the way the teen starts to think it over. It's the only thing he can come up with in this pause of silence. He isn't Sherlock he doesn't know how the question affected him or anything like that.

'Sort of is'? So it was still ongoing? Then he stops as he hears the next part.]

..Appearing in, wait so it's possible then? Well I mean it did happen but. Most of us [think we're crazy and hallucinating] are still having a hard time believing that's what happened.