Listen to Halo: Cryptum - Book One of the Forerunner Saga on your phone!
100,000 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, the next stage of life in the Universe's Living Time.And then they disappeared. This is their story.