Instruct: Classify an Amazon review as either positive or negative.
Query: An obvious runup for another set of books in this series.

This series started strongly seven books ago. What a shame that it has been dragged out to these lengths. This novel promised to be the conclusion of the World War/Colonization story. All we really got was a lot of loose ends that will certainly culminate with another padded series of books. As another reviewer said below, when Turtledove's good - he's very good. It's a shame to see him painfully drawing out what should have been an excellent story just to sell more books.