Speaking of explaining stuff...
I'll point out that the author has yet to explain anything about the wider world of spirits and spiritualists. Is there some sort of governing organization? Are there rules? Or is everything just individual spiritualists doing their own thing (sometimes with cooperation from others).
And what is "middle aged man"? Miko asked... and got no (real) answer.
And how about explicitly saying "stay the hell out of my house, asshole!" (At least she told her Mom and bro to keep him out, but is she opening the back door by letting those creepy things "guard" her?)
And BTW, how about: "Can/should I talk to my Dad? And how about doghorseghost? It seems cool."