So I'm on my third playthrough and I cannot fathom why early on when you have the chance to tell Ella that you learned how to make poison, she kills you if you tell her, this seems completely contradictory to everything she does and says in interactions with you, I know its entitled to thing the dev might respond to this, but what is the reason she does this if its not a major plot spoiler down the line.
MAJOR SPOILERS
The way I understood, Ella tried to become the child of two Apostles, but failed due to no killing Christie. Since then, she has been attempting to create one, failing until us. If we reveal that we have the powers of both Memory and Body, she kills us to absorb our powers. If we stay quiet, she nurtures us so we may unlock said powers. At least this is my interpretation of her.