Can someone explain me the correct ways to use the investigation tools? I think I get too many false negatives.
I mean things like this: if you use the notebook and get no result, it could mean the ghost doesn't do writing, or she just didn't come across it; what's the right spot to use it? Or the audio box, I think you need her to pass by. Or the UV light - I think I've had cases when there was no prints anywhere at all, yet the ghost was one with UV prints according to the profile.
Case in point, just now I caught a Maryam in the city streets. I got a writing clue, but no audio despite running all around the spawn room and no UV prints despite checking the whole area.
Edit: I tried to follow Faith's quest from the guide, but when I input the code, the symbols light up but nothing else happens. What am I supposed to do there?