In the conclusion to The Stolen Future trilogy, Keryl Clee finds himself at the center of a crisis which could mean the destruction not only on Earth, but of Time itself. Hostages of a time-traveling madman who is creating an army from the past to conquer the world of the future, before Clee and Lady Maire can defeat him they must come to grips with the shocking truth behind the 300-year-old Nuum invasion of Earth.
Beset by new and powerful enemies, betrayed by the Council of Nobles itself, Keryl Clee has one last chance to unite the peoples of Earth–Nuum and Thoran, human and non-human alike–because even he is powerless against those who are coming from beyond the stars to reach…The Cosmic City.
I’ve only read the first in this trilogy, but it was stellar.