Detailed setting book for the Regency, the last stronghold of both human interstellar civilization and the Third Imperium. Data on 4 sectors is provided - the entire Domain of Deneb in the New Era - including the Spinward Marches, changed not a little from the Marches of the Classic era. Also provided is a wealth of information on the Regency, it's neighbors and enemies - and hints of a threat sweeping the entire galaxy.