Published essays or articles online?

i am supposed to find an article or some sort of a published essay about Toni Morrison's book Beloved.

my essay prompt is: how does Toni Morrison want the reader to judge Sethe.

so my aricle/essay needs to pertain to the topic. I think that anything about Sethe would work since i'm just pulling ideas from it.

i need to write a summary on it, and i would prefer that it isn't extremely long..