Agents of the Imperial Special Investigation Service is a boxed set of books 1-10 of the first great space opera decalogy of the 21st century. All the books are here, complete and unabridged, at a convenient price that provides a saving over buying the volumes individually. The series comprises:
TSAR WARS
TREACHEROUS MOON
ROBOT MOLUNTAIN
SANCTUARY PLANET
STELLAR REVOLUTION
PURGATORY PLOT
TRAITORS' WOPRLD
COUNTERFEEIT STARS
OUTWORLD INVADEERS
GALACTIC COLLAPSE