Well, the game has some weak points if you dont follow the WT...i played it just for fun, means as soon as i got the charm spell i carmed everyone possible and noted those who were charmed by others and those who always were public...as soon as i got davys sister i let her follow me and recharmed all of davys victims...long before i knew about the silver ring...then with the shielded charm i finished the job. Many characters gave me informations and topics to talk about i shouldnt even know about at some points. For example, i let the mayor close the museum, get the vase, find out ginas name and adress and all without ever being in the museum before, so i missed the whole arresting scene, i also recharmed the cops before i did this, just because they were on the way between townhall and tv-studio. and so on. I wouldnt wonder if you can break the game that way. I also never got the blue bottle, i only learned she selled it but since i forgot to whom and noone ever talked about it again i still dont have it. Such minor details happens if you just play in your own order instead of following the intended order and stuff triggers by meeting instead of by needing.