In Day of the Vipers we are given the origins of the Cardassian occupation of Bajor, which itself sets the stage for DS9. Swallow skillfully lets the elements propel themselves, forcing the reader to constantly second guess the inevitability of the end result.
good read, gives a good background to the events leading up to the occupation of Bajor. looking forward to the 2nd in the series, as the Plot thickens, :<{)