Hyperion series

It is the 29th century and the universe of the Human Hegemony is under threat. Invasion by the warlike Ousters looms, and the mysterious schemes of the secessionist AI TechnoCore bring chaos ever closer. On the eve of disaster, with the entire galaxy at war, seven pilgrims set fourth on a final voyage to the legendary Time Tombs on Hyperion, home to the Shrike, a lethal creature, part god and part killing machine, whose powers transcend the limits...

The multiple-award-winning science fiction master returns to the universe that is his greatest triumph—the world of Hyperion and The Fall of
Hyperion —with a novel even more magnificent than its predecessors.
Dan Simmons's Hyperion was an immediate sensation on its first publication in 1989.  This staggering multifaceted tale of the far future heralded the conquest of the science fiction field by a man who...