Step one; Know thy enemy, know thy self, and you will not be imperiled in a hundred battles. Record is an absolutely amazing force multiplier. We need to know what Revi can do, and how far she can push things. She seems pretty conceptual, so this will take both research and experimentation.
In addition, Record will help me trace this affliction back to where it came from. I want to know everything about it. Who, what, where, when, why, and how. All of the how. When I get a good grasp on what makes this thing tick, I will ask Revi to "Flip" little parts of it. I doubt I can start by switching, "Is currently possessing Teresa," to, "Is not currently possessing Teresa."
No I'll probably need to take it apart more slowly. If I have to get Revi to switch it apart, bit by bit, until it's a pathetic, weak willed, corporeal mass of fear and self loathing to get it out of Teresa, I will. Hell, maybe it will turn out that the best solution is to use concept switching to physically enter Teresa's soul and punch a ghost.
I don't know enough about this thing to come up with a rock solid plan yet, but I have the means to learn, and the leverage to turn that knowledge into action.
That spirit messed with the wrong family.
Oh yeah, and I guess I can figure out what I was doing wrong with the stupid iPhone.Captcha; SQUARE ZONE. The machine is calling me a nerd...