Amazon review....

[conuly]

I️ thoroughly enjoyed the Temeraire series, right up until this book. Like the others, it was well-written with a brand new setting and a brand new plot. However, the plot while starting out good, wobbled in the middle, and collapsed entirely in the end. Maybe someone else could appreciate the wishful deviation from history and what will assuredly be a miraculous recovery from the ending in the next book, but not me. I’m done with the Temeraire series, which saddens me because it was, up until this book, a very pleasant, historically brilliant series to read.

For context, the series in question features dragons in the Napoleonic Wars.