Halo: Cryptum: Book One of the Forerunner Saga, Paperback

The first novel in the Forerunner Saga trilogy by science fiction legend Greg Bear--set in the Halo universe and based on the New York Times bestselling video game series

One hundred thousand years ago, the galaxy was populated by a great variety of beings.

But one species--eons beyond all others in both technology and knowledge--achieved dominance.

They ruled in peace, but met opposition with quick and brutal effectiveness.

They were the Forerunners--the keepers of the Mantle of Responsibility, the next stage of life in the Universe's Living Time.

And then they vanished.

This is their story.