The ending of Kindred is somewhat unsatisfying, because the reader and Dana never find out what really happened. By the prologue, the reader already knows that Dana lost her arm in a strange and almost supernatural incident. We really want to find out what happened. We read the whole book, and we learn about Rufus grabbing Dana’s arm and Dana killing him, but we do not actually find out what happened after that. She goes to the future, and by researching the past she learns that his death was attributed to the fire. She never really finds out what else happens.
On the other hand, not telling the reader everything can also be satisfying. This way, the reader can imagine things and try to determine for his or her self what happened after that.