Yetu is the historian for her underwater society, a group of deep sea merfolk who live in the depths of the Atlantic. She carries all of the memories, beautiful and painful, of their ancestors- pregnant women tossed overboard from ships during the years of slave trading. It is a great honor and a terrible burden to carry these memories, and Yetu thinks it might kill her to carry them alone. When an opportunity comes to leave the memories and her people behind, Yetu takes it. But who is she without her past and her people? I listened to this 4 hour novella on audio and enjoyed it a lot of a mythical alternate history.