I can't really understand why people are so eager to open gates of Molly's world to strangers from the White Council. Brass Courts are self-sufficient now, so we don't need external help from WC, before the chance to root out Peabody and other (sleeper) agents among wizards. And if you presume that someone influenced by the Black Council won't try to be in the diplomatic mission or won't try something dangerous in Molly's soul, you are too optimistic.
My answer is "I have faith". Our courts are the position of our maximum strength. Nowhere else in Creation are we and those who follow us as strong as we are there (barring maybe friendly Malfeas with Ligier perfectly active and no Ebon Dragon). Any delegation that is sent there will be under constant watch via magic and technology, subject to the best of information gathering, subversion and monitoring techniques the best our spy agencies (we have those!) have to offer.This is my issue as well. Even without meta knowledge, we know the White Council is compromised. I can't understand why so many people are voting to invite the WC into the FCF.
And so many of y'all are voting to just do that without even asking for anything in return, like we should be grateful for the Merlin offering to send people there for some reason.
Wizards are more powerful than Path magic users. They are not so powerful to steamroll specialized agencies with millenia of experience and industrialized magic.
Merlin, on seeing a true magitech industrially made device near crapped his pants. He is old enough to remember colonialism and industrialization. In his mind, there's a real possiblity that we can do that to Earth's supernatural community, if not Earth entire. I suspect that at least Ancient Mai will be in full agreement with him.
And the probability of anyone compromised being sent approaches zero. Because, again, it will be an unspoken understanding that those sent will be under constant super-intrusive watch. It would be stupid to send someone compromised - it has too high a chance of giving them away. Because WC, and everyone else do not know any of our capabilities. For all they know, there are fully functioning third circle demons in there, with perfect social attacks and perfect investigation charms. Or, hell, Maidens are asleep under each of the pillars, and are about to wake up.
Those inside our soul will be going into a place of power they understand nothing about, with no hope of getting back save by our sufferance.