I haven't been in the forums in a while and honestly didn't do any research, perhaps this has already been discussed.
I was curious, can only the King/Overlord change capital sites? Or can a Chief Warlord also, or a heir designate perhaps?
The Tool is very simple and straight forward, the way I see it the only real problem he has about switching sides is his fear that it won't switch back. I feel if Parson can convince Stanley that it'll switch right back as soon as the fire is out he'll be more willing too. Or perhaps Maggie will simply use more mind control, though I feel that is an unlikely option. I dunno if this idea has been mentioned somewhere already, but I seem to recall that somewhere in this burning city there lay a enchanted rug with the ability of flight, or some helpful thing placed at Ace Hardware.
It seems to me that Charlie believes he understands Stanley, and knew that the Tool wouldn't be willing to change capital sites. Luckily for Parson, the rubber-hammer wielding Napoleon is just the kind of Tool that would only do it to prove Charlie wrong, for selfish pride and not to save his chief warlord perhaps but still doing the right thing.
It does not matter in what manner or form Parson is delivered from his fiery doom, it is not his fate to croak in that way or in this battle. He will live to fight another day.