Sula by Toni Morrison

Nel and Sula's devotion is fierce enough to withstand bullies and the burden of a dreadful secret. It endures even after Nel has grown up to be a pillar of the black community and Sula has become a pariah. But their friendship ends in an unforgivable betrayal—or does it end? Terrifying, comic, ribald and tragic, Sula is a work that overflows with life.