In answering this letter, please state if there would be any safety for my Milly and Jane, who are now grown up, and both good-looking girls. You know how it was with poor Matilda and Catherine. I would rather stay here and starve—and die, if it come to that—than have my girls brought to shame by the violence and wickedness of their young masters. You will also please state if there has been any schools opened for the colored children in your neighborhood. The great desire of my life now is to give my children an education, and have them form virtuous habits.
This is also the same sort of passive aggressive tone as from before, since he is coupling negotiations from a position of power and basically drawing a hard line that he will not come back unless the Colonel Anderson can guarantee his daughters' safety. But he couples it with a sort of innocent question about schooling as well. It's surprisingly educated in its delivery, since everytime it takes something or delivers a devastating statement, it also balances it with either an outright compliment or a mundane question to dilute the previous blow. It as a whole seems to be establishing a sort of idea that, yes, he's willing to return, but he's actually not, as he's demanding many things that the Colonel can't provide. It's basically a soft rejection of his offer by making it look instead of as a personal decision off of just a refusal to work for him, but by disguising it as a logical decision based on just common working conditions and employment, such as differing wages and benefits. Again, it seems surprisingly well put together and educated, which likely is also intentionally done to undermine the Colonel's position.