HYPERION: 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 of time and space. The pilgrims have resolved to die before discovering anything less than the secrets of the universe itself.

THE FALL OF HYPERION: The mysterious Time Tombs are opening and the Shrike that has risen from them may well control the fate of all mankind. The Ousters are laying seige to the Hegemony of Man and the AIs we created have turned against us to build the Ultimate Intelligence; God. The God of Machines. His genesis could mean annihilation for man. Something is drawing the hegemony, the Ousters, the AIs, the entire universe to the Shrike.

ENDYMION: Two hundred and seventy-four years after the fall of the WorldWeb in Fall of Hyperion, Raoul Endymion is sent on a quest. Retrieving Aenea from the Sphinx before the Church troops reach her is only the beginning. With help from a blue-skinned android named A. Bettik, Raoul and Aenea travel the river Tethys, pursued by Father Captain Frederico DeSoya, an influential warrior-priest and his troops. The shrike continues to make enigmatic appearances, and while many questions were raised in Hyperion and Fall of Hyperion, still more are raised here. Raoul's quest will continue.

THE RISE OF ENDYMION: The time of reckoning has arrived. As a final genocidal Crusade threatens to enslave humanity forever, a new messiah has come of age. She is Aenea and she has undergone a strange apprenticeship to those known as the Others. Now her protector, Raul Endymion, one-time shepherd and convicted murderer, must help her deliver her startling message to her growing army of disciples. But first they must embark on a final spectacular mission to discover the underlying meaning of the universe itself. They have been followed on their journey by the mysterious Shrike - monster, angel, killing machine - who is about to reveal the long-held secret of its origin and purpose. And on the planet of Hyperion, where the story first began, the final revelation will be delivered - an apocalyptic message that unlocks the secrets of existence and the fate of humankind in the galaxy.