Hopkinson has a quick wit and a knack for crafting characters who feel alive. Sister Mine is no exception: The voice of each character sings strongly in its own distinct timbre. Unfortunately, while the portrayal of a sibling relationship attempts to pay tribute to the joys and challenges of sisterly love, it fails to match the vibrancy of the characters’ individual voices, striking a false note. All the tributes in the world can’t bring that relationship to life, and the other characters (uncles, mothers, fathers, gods and goddesses) do not have any better luck in this narrative. In the end, the potential story, and the potential of the relationships, end up being much better than the actual story.