Found out what the "Red One's Secret" is.
It is a lie.
I understand that it doesn't sound significant to anyone else but trust me, it is the key I was missing. There are lies that one tells others, lies one tells oneself, and then there is a third kind. This is the third kind.
But like any lie there is an inconsistency. There is a discrepency that can be found. That is what the Wanderer is looking for. And I am going to help her.