1) Take on the FBI conspiracy -- they're the most mundane ones. So let's press Rufus for information on it, and also spy a bunch on Anton. We should at a minimum search his office, home, and computer files. Hopefully we'll find enough to give us pointers where these guys are based -- quite possibly D.C. Taking a plane would probably give them warning, so let's be prepared for a road trip. If we can get where they are, then let's knock on the head bee-atch's door and take her out.
2) Chat up Ariel a bit. We know we can trust it, since it'll be one of our allies. After the ice is broken, I want to try to make a deal with it -- that Ariel sells out the cat-creature (that's Chris or another one of its kind). I don't want to pick a fight with Ariel by capturing its buddy Chris, so best to get permission and conditions. Hopefully Ariel will agree, so we capture Chris and interrogate it using that truth-sensing spell.
3) Keep our eyes and ears open for the flood monsters and the agents. If we do the road trip, perhaps we should visit New Orleans to try some poking around, spell casting, and research there. We know less about these things.
Hopefully after we do that, we'll have a better idea of what to do next.