Instruct: Classify Amazon reviews into positive or negative sentiment
Query: And it all ends . . . with a whimper

I've read all of Douglass's series and I usually am disappointed in the last books of the series, so I may be a little biased. But here, it seems like all of the character development from the other books was for naught. What happened to Noah? After having her serve as the central female protagonist for the first several books of the series, it was strange and disappointing to have her so easily supplanted by Grace. Nothing against Grace, but she is not the character who I have come to care about. There is no satisfying end to the tale of the characters we have come to know. Genvissa, Asterion, Brutus, Cornelia, Coel - all are left rather flat. This story could stand on its on without any of the backstory of the other books. That is hardly a compliment to what should be the cumulative final installment in what otherwise was an excellent series. Highly disappointing.