the affair of the box hasn't been the best money grind in i think a year.
we now have the arbor grind (exchanging enough attar for favors in high places on a rare success is insanely lucrative and cant net you around 4.5 epa or some such), silken thread expedition (depends on if you're using dock favors or hard-back labor, but moves between 3-4 epa) and exchanging urchins for court favor in the court of the wakeful eye.

although i gotta say that is pretty good for ending around 3.12 epa! (depends on how long you do the carousal, and acknowledging the favors needed to get a human rib cage etc)

https://fallenlondon.fandom.com/wiki/Money-Making